Re: [RBW] Re: 26.8mm seat post diameter??

[aeroperf]

This thread made me get out the digital calipers and go check things.
After a bunch of re-measurements, I guess I just have to accept that I have 
weird seatpost sizes.

2014 Sam Hillborne = 27.2
1982 Team Fuji = 27.2
2020 Soma Saga tourer = 27.6
2002 KTM tourer = 27.6
2001 Sundance Top City German shopping bike = 29.2 (!)

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Re: [RBW] Re: 26.8mm seat post diameter??

[Hugh Smitham]

🙏

On Thu, Nov 4, 2021, 10:49 AM David Person  wrote:

> I should have said "Arigatōgozaimashita"
>
> On Thursday, November 4, 2021 at 10:29:55 AM UTC-7 David Person wrote:
>
>> Looks like it is.  Thanks.
>>
>> On Thursday, November 4, 2021 at 10:13:33 AM UTC-7 Hugh Smitham wrote:
>>
>>> David,
>>>
>>> I believe this is it.
>>>
>>> https://youtu.be/6lmLbScZruQ
>>>
>>> Hugh n LA
>>>
>>> On Thu, Nov 4, 2021, 10:11 AM David Person  wrote:
>>>
 Do you have the link to the 2nd video?

 On Thursday, November 4, 2021 at 10:07:59 AM UTC-7 Hugh Smitham wrote:

> David,
>
> I watched both videos and yes noticed the Grant Peterson comment.
> Really fun behind the scenes video, not just us:)  I especially liked the
> president (I assume) talking about handle bar trends and curious origin
> story's of particular products. I thought his discussion on titanium was
> particularly interesting as well.
>
> I purchased a nos Suntour pro xc 26.8 post from eBay apparently a list
> member.
>
> Hugh n LA
>
>
>
> On Thu, Nov 4, 2021, 8:40 AM David Person  wrote:
>
>> In the latest email from Will "See you in Philly" he includes a link
>> to a YouTube video of a visit by Blue Lug to the Nitto factory.
>> Interesting video should the process for making many of their items.
>> At15:40 into to video, Grant is called out by name for switching to 
>> 26.8mm
>> seat posts and how they wished he would go back to 27.2mm.
>>
>> https://www.youtube.com/watch?v=XYIV6O6tOvY
>>
>> On Wednesday, October 20, 2021 at 4:11:00 PM UTC-7 divis...@gmail.com
>> wrote:
>>
>>> Is it? I've got two bikes with that seatpost size (maybe 3, once I
>>> get the seatpost clamp rounded out). And I don't even own an old Cinelli
>>> with fastback stays, which famously use 26.2.
>>>
>>> Peter "statements from owners of multiple French bikes should be
>>> treated as anecdotes, not as dispositive evidence" Adler
>>> Berkeley, CA/USA
>>>
>>> On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman
>>> wrote:
>>>
 Dave, *who when he sees a car with a 26.2 sticker on the rear
 tends to think “Now that’s a rare seatpost size”*

>>> --
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>>
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Re: [RBW] Re: 26.8mm seat post diameter??

[David Person]

I should have said "Arigatōgozaimashita"

On Thursday, November 4, 2021 at 10:29:55 AM UTC-7 David Person wrote:

> Looks like it is.  Thanks.
>
> On Thursday, November 4, 2021 at 10:13:33 AM UTC-7 Hugh Smitham wrote:
>
>> David,
>>
>> I believe this is it.
>>
>> https://youtu.be/6lmLbScZruQ
>>
>> Hugh n LA
>>
>> On Thu, Nov 4, 2021, 10:11 AM David Person  wrote:
>>
>>> Do you have the link to the 2nd video?
>>>
>>> On Thursday, November 4, 2021 at 10:07:59 AM UTC-7 Hugh Smitham wrote:
>>>
 David,

 I watched both videos and yes noticed the Grant Peterson comment. 
 Really fun behind the scenes video, not just us:)  I especially liked the 
 president (I assume) talking about handle bar trends and curious origin 
 story's of particular products. I thought his discussion on titanium was 
 particularly interesting as well.

 I purchased a nos Suntour pro xc 26.8 post from eBay apparently a list 
 member.

 Hugh n LA



 On Thu, Nov 4, 2021, 8:40 AM David Person  wrote:

> In the latest email from Will "See you in Philly" he includes a link 
> to a YouTube video of a visit by Blue Lug to the Nitto factory.  
> Interesting video should the process for making many of their items.  
> At15:40 into to video, Grant is called out by name for switching to 
> 26.8mm 
> seat posts and how they wished he would go back to 27.2mm.
>
> https://www.youtube.com/watch?v=XYIV6O6tOvY
>
> On Wednesday, October 20, 2021 at 4:11:00 PM UTC-7 divis...@gmail.com 
> wrote:
>
>> Is it? I've got two bikes with that seatpost size (maybe 3, once I 
>> get the seatpost clamp rounded out). And I don't even own an old Cinelli 
>> with fastback stays, which famously use 26.2.
>>
>> Peter "statements from owners of multiple French bikes should be 
>> treated as anecdotes, not as dispositive evidence" Adler
>> Berkeley, CA/USA
>>
>> On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman 
>> wrote:
>>
>>> Dave, *who when he sees a car with a 26.2 sticker on the rear tends 
>>> to think “Now that’s a rare seatpost size”*
>>>
>> -- 
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>  
> 
> .
>
 -- 
>>> You received this message because you are subscribed to a topic in the 
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>>>  
>>> 
>>> .
>>>
>>

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Re: [RBW] Re: 26.8mm seat post diameter??

[David Person]

Looks like it is.  Thanks.

On Thursday, November 4, 2021 at 10:13:33 AM UTC-7 Hugh Smitham wrote:

> David,
>
> I believe this is it.
>
> https://youtu.be/6lmLbScZruQ
>
> Hugh n LA
>
> On Thu, Nov 4, 2021, 10:11 AM David Person  wrote:
>
>> Do you have the link to the 2nd video?
>>
>> On Thursday, November 4, 2021 at 10:07:59 AM UTC-7 Hugh Smitham wrote:
>>
>>> David,
>>>
>>> I watched both videos and yes noticed the Grant Peterson comment. Really 
>>> fun behind the scenes video, not just us:)  I especially liked the 
>>> president (I assume) talking about handle bar trends and curious origin 
>>> story's of particular products. I thought his discussion on titanium was 
>>> particularly interesting as well.
>>>
>>> I purchased a nos Suntour pro xc 26.8 post from eBay apparently a list 
>>> member.
>>>
>>> Hugh n LA
>>>
>>>
>>>
>>> On Thu, Nov 4, 2021, 8:40 AM David Person  wrote:
>>>
 In the latest email from Will "See you in Philly" he includes a link to 
 a YouTube video of a visit by Blue Lug to the Nitto factory.  Interesting 
 video should the process for making many of their items.  At15:40 into to 
 video, Grant is called out by name for switching to 26.8mm seat posts and 
 how they wished he would go back to 27.2mm.

 https://www.youtube.com/watch?v=XYIV6O6tOvY

 On Wednesday, October 20, 2021 at 4:11:00 PM UTC-7 divis...@gmail.com 
 wrote:

> Is it? I've got two bikes with that seatpost size (maybe 3, once I get 
> the seatpost clamp rounded out). And I don't even own an old Cinelli with 
> fastback stays, which famously use 26.2.
>
> Peter "statements from owners of multiple French bikes should be 
> treated as anecdotes, not as dispositive evidence" Adler
> Berkeley, CA/USA
>
> On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman 
> wrote:
>
>> Dave, *who when he sees a car with a 26.2 sticker on the rear tends 
>> to think “Now that’s a rare seatpost size”*
>>
> -- 
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 .

>>> -- 
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>>  
>> 
>> .
>>
>

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Re: [RBW] Re: 26.8mm seat post diameter??

[Hugh Smitham]

David,

I believe this is it.

https://youtu.be/6lmLbScZruQ

Hugh n LA

On Thu, Nov 4, 2021, 10:11 AM David Person  wrote:

> Do you have the link to the 2nd video?
>
> On Thursday, November 4, 2021 at 10:07:59 AM UTC-7 Hugh Smitham wrote:
>
>> David,
>>
>> I watched both videos and yes noticed the Grant Peterson comment. Really
>> fun behind the scenes video, not just us:)  I especially liked the
>> president (I assume) talking about handle bar trends and curious origin
>> story's of particular products. I thought his discussion on titanium was
>> particularly interesting as well.
>>
>> I purchased a nos Suntour pro xc 26.8 post from eBay apparently a list
>> member.
>>
>> Hugh n LA
>>
>>
>>
>> On Thu, Nov 4, 2021, 8:40 AM David Person  wrote:
>>
>>> In the latest email from Will "See you in Philly" he includes a link to
>>> a YouTube video of a visit by Blue Lug to the Nitto factory.  Interesting
>>> video should the process for making many of their items.  At15:40 into to
>>> video, Grant is called out by name for switching to 26.8mm seat posts and
>>> how they wished he would go back to 27.2mm.
>>>
>>> https://www.youtube.com/watch?v=XYIV6O6tOvY
>>>
>>> On Wednesday, October 20, 2021 at 4:11:00 PM UTC-7 divis...@gmail.com
>>> wrote:
>>>
 Is it? I've got two bikes with that seatpost size (maybe 3, once I get
 the seatpost clamp rounded out). And I don't even own an old Cinelli with
 fastback stays, which famously use 26.2.

 Peter "statements from owners of multiple French bikes should be
 treated as anecdotes, not as dispositive evidence" Adler
 Berkeley, CA/USA

 On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman
 wrote:

> Dave, *who when he sees a car with a 26.2 sticker on the rear tends
> to think “Now that’s a rare seatpost size”*
>
 --
>>> You received this message because you are subscribed to a topic in the
>>> Google Groups "RBW Owners Bunch" group.
>>> To unsubscribe from this topic, visit
>>> https://groups.google.com/d/topic/rbw-owners-bunch/PJBZce5BzpY/unsubscribe
>>> .
>>> To unsubscribe from this group and all its topics, send an email to
>>> rbw-owners-bun...@googlegroups.com.
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/rbw-owners-bunch/f88fd42e-620f-4575-91ea-dabceff3b43dn%40googlegroups.com
>>> 
>>> .
>>>
>> --
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> 
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Re: [RBW] Re: 26.8mm seat post diameter??

[David Person]

Do you have the link to the 2nd video?

On Thursday, November 4, 2021 at 10:07:59 AM UTC-7 Hugh Smitham wrote:

> David,
>
> I watched both videos and yes noticed the Grant Peterson comment. Really 
> fun behind the scenes video, not just us:)  I especially liked the 
> president (I assume) talking about handle bar trends and curious origin 
> story's of particular products. I thought his discussion on titanium was 
> particularly interesting as well.
>
> I purchased a nos Suntour pro xc 26.8 post from eBay apparently a list 
> member.
>
> Hugh n LA
>
>
>
> On Thu, Nov 4, 2021, 8:40 AM David Person  wrote:
>
>> In the latest email from Will "See you in Philly" he includes a link to a 
>> YouTube video of a visit by Blue Lug to the Nitto factory.  Interesting 
>> video should the process for making many of their items.  At15:40 into to 
>> video, Grant is called out by name for switching to 26.8mm seat posts and 
>> how they wished he would go back to 27.2mm.
>>
>> https://www.youtube.com/watch?v=XYIV6O6tOvY
>>
>> On Wednesday, October 20, 2021 at 4:11:00 PM UTC-7 divis...@gmail.com 
>> wrote:
>>
>>> Is it? I've got two bikes with that seatpost size (maybe 3, once I get 
>>> the seatpost clamp rounded out). And I don't even own an old Cinelli with 
>>> fastback stays, which famously use 26.2.
>>>
>>> Peter "statements from owners of multiple French bikes should be treated 
>>> as anecdotes, not as dispositive evidence" Adler
>>> Berkeley, CA/USA
>>>
>>> On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman wrote:
>>>
 Dave, *who when he sees a car with a 26.2 sticker on the rear tends to 
 think “Now that’s a rare seatpost size”*

>>> -- 
>> You received this message because you are subscribed to a topic in the 
>> Google Groups "RBW Owners Bunch" group.
>> To unsubscribe from this topic, visit 
>> https://groups.google.com/d/topic/rbw-owners-bunch/PJBZce5BzpY/unsubscribe
>> .
>> To unsubscribe from this group and all its topics, send an email to 
>> rbw-owners-bun...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/rbw-owners-bunch/f88fd42e-620f-4575-91ea-dabceff3b43dn%40googlegroups.com
>>  
>> 
>> .
>>
>

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Re: [RBW] Re: 26.8mm seat post diameter??

[lconley]

At least Rivendell started carrying the 26.8 IRD long setback seatpost.

Laing

On Thursday, November 4, 2021 at 11:41:21 AM UTC-4 cycli...@gmail.com wrote:

> Oh yeah, be sure to turn on Closed Caption in order to get english 
> subtitles.
>
> On Thursday, November 4, 2021 at 8:40:16 AM UTC-7 David Person wrote:
>
>> In the latest email from Will "See you in Philly" he includes a link to a 
>> YouTube video of a visit by Blue Lug to the Nitto factory.  Interesting 
>> video should the process for making many of their items.  At15:40 into to 
>> video, Grant is called out by name for switching to 26.8mm seat posts and 
>> how they wished he would go back to 27.2mm.
>>
>> https://www.youtube.com/watch?v=XYIV6O6tOvY
>>
>> On Wednesday, October 20, 2021 at 4:11:00 PM UTC-7 divis...@gmail.com 
>> wrote:
>>
>>> Is it? I've got two bikes with that seatpost size (maybe 3, once I get 
>>> the seatpost clamp rounded out). And I don't even own an old Cinelli with 
>>> fastback stays, which famously use 26.2.
>>>
>>> Peter "statements from owners of multiple French bikes should be treated 
>>> as anecdotes, not as dispositive evidence" Adler
>>> Berkeley, CA/USA
>>>
>>> On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman wrote:
>>>
 Dave, *who when he sees a car with a 26.2 sticker on the rear tends to 
 think “Now that’s a rare seatpost size”*

>>>

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Re: [RBW] Re: 26.8mm seat post diameter??

[David Person]

Oh yeah, be sure to turn on Closed Caption in order to get english 
subtitles.

On Thursday, November 4, 2021 at 8:40:16 AM UTC-7 David Person wrote:

> In the latest email from Will "See you in Philly" he includes a link to a 
> YouTube video of a visit by Blue Lug to the Nitto factory.  Interesting 
> video should the process for making many of their items.  At15:40 into to 
> video, Grant is called out by name for switching to 26.8mm seat posts and 
> how they wished he would go back to 27.2mm.
>
> https://www.youtube.com/watch?v=XYIV6O6tOvY
>
> On Wednesday, October 20, 2021 at 4:11:00 PM UTC-7 divis...@gmail.com 
> wrote:
>
>> Is it? I've got two bikes with that seatpost size (maybe 3, once I get 
>> the seatpost clamp rounded out). And I don't even own an old Cinelli with 
>> fastback stays, which famously use 26.2.
>>
>> Peter "statements from owners of multiple French bikes should be treated 
>> as anecdotes, not as dispositive evidence" Adler
>> Berkeley, CA/USA
>>
>> On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman wrote:
>>
>>> Dave, *who when he sees a car with a 26.2 sticker on the rear tends to 
>>> think “Now that’s a rare seatpost size”*
>>>
>>

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Re: [RBW] Re: 26.8mm seat post diameter??

[David Person]

In the latest email from Will "See you in Philly" he includes a link to a 
YouTube video of a visit by Blue Lug to the Nitto factory.  Interesting 
video should the process for making many of their items.  At15:40 into to 
video, Grant is called out by name for switching to 26.8mm seat posts and 
how they wished he would go back to 27.2mm.

https://www.youtube.com/watch?v=XYIV6O6tOvY

On Wednesday, October 20, 2021 at 4:11:00 PM UTC-7 divis...@gmail.com wrote:

> Is it? I've got two bikes with that seatpost size (maybe 3, once I get the 
> seatpost clamp rounded out). And I don't even own an old Cinelli with 
> fastback stays, which famously use 26.2.
>
> Peter "statements from owners of multiple French bikes should be treated 
> as anecdotes, not as dispositive evidence" Adler
> Berkeley, CA/USA
>
> On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman wrote:
>
>> Dave, *who when he sees a car with a 26.2 sticker on the rear tends to 
>> think “Now that’s a rare seatpost size”*
>>
>

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Re: [RBW] Re: 26.8mm seat post diameter??

[Peter Adler]

Is it? I've got two bikes with that seatpost size (maybe 3, once I get the 
seatpost clamp rounded out). And I don't even own an old Cinelli with 
fastback stays, which famously use 26.2.

Peter "statements from owners of multiple French bikes should be treated as 
anecdotes, not as dispositive evidence" Adler
Berkeley, CA/USA

On Wednesday, October 20, 2021 at 1:13:19 PM UTC-7 David Hallerman wrote:

> Dave, *who when he sees a car with a 26.2 sticker on the rear tends to 
> think “Now that’s a rare seatpost size”*
>

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Re: [RBW] Re: 26.8mm seat post diameter??

[David Hallerman]

My personal 26.8mm seatpost datapoints have mainly been with relatively
high-end bikes such as an early-90s Slim Chance with one of those skinny
old top tubes; a fillet-brazed Ritchey road bike likely made by the man
himself in the 1990s (sorry I sold that one); and my wife’s
turn-of-the-century Indy Fab Crown Jewel.

Now 27.4mm seatposts, like Waterford used to make, were the devil incarnate
to find. I only remember American Classic for that size.

Dave, *who when he sees a car with a 26.2 sticker on the rear tends to
think “Now that’s a rare seatpost size”*

On Wed, Oct 20, 2021 at 3:43 PM Paul Brodek  wrote:

> IME back in the day 27.2mm was more common on higher-end frames than
> 26.8mm, while 26.8mm was more common on mid-level frames. And 26.8mm was
> rarely seen on top-level frames. But my back in the day selling new bikes
> started in 1980, with pre-1980 experience being most repair/service. Maybe
> Saturday Mark goes back further.
>
> Paul Brodek
> Hillsdale, NJ USA
>
> On Tuesday, October 19, 2021 at 1:28:12 PM UTC-4 Saturday Mark wrote:
>
>> 26.8 was just as common as 27.2 back in the 70's and 80's, prior to the
>> now more . Riv has done 26.8 on a bunch of the step throughs since way back
>> when.
>>
>> With that said, 26.8 is probably in short supply right now due to
>> pandemic, but...
>>
>> Nitto makes in crystal fellow and s83
>> Thomson makes 26.8
>> Kalloy Uno as well as their Crystal Fellow copy
>> + a bunch of private label (Dimension, Sunlite, Origin8... etc)
>>
>> On Monday, October 18, 2021 at 8:01:38 PM UTC-6 Hugh Smitham wrote:
>>
>>> Maybe someone can answer this, why in the heck did Rivendell start
>>> making the seat tube inside diameter 26.8mm on the new bikes? I believe
>>> hearing something about seat tube wall thickness. Don't get me wrong, I
>>> think the new Geos make for a better ride, but it's way easier to find
>>> posts in 27.2mm all day long.
>>>
>>> Rivendell has the Nitto S83 in that diameter but it's a whopping 300 mm
>>> length 50 mm more than I need and also a whopping $128 before tax and
>>> shipping.
>>>
>>> Rant over n out.
>>>
>>> Hugh n LA
>>>
>>>
>>> --
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Re: [RBW] Re: 26.8mm seat post diameter??

[Paul Brodek]

I've resorted to carbon paste on a couple of frames, and it definitely 
solves the slippage problem for me. It also, however, scratches the heck 
out of the inserted section of the seatposts IME.

I have one seatpost that's been rolled/machined, which also solved the 
slippage problem. Can't remember where I got it, though, so I don't know 
for sure who did the work. However, the cross-hatch looks similar to the 
pattern produced by the wonderful Stein tool, which ain't cheap but looks 
very groovy (that was an unintentional joke, btw):
https://steintool.com/portfolio-items/knurling-tool/

Paul Brodek
Hillsdale, NJ USA



On Tuesday, October 19, 2021 at 2:02:09 PM UTC-4 kwi...@weimar.edu wrote:

> I decided to replace the 26.8 seat post that came with my Roadini; I 
> discovered that 'Promax' makes a nice and light and high quality seatpost 
> in 26.8 (it is 'SP-1' model and it comes in Red, Blue, Gold and Black (no 
> silver).  It has served very nicely.  I also had trouble with both of my 
> 26.8 seat posts slipping down over time with the Roadini frame.  I ended up 
> using some carbon paste to solve that problem.  You can also have a 
> machinist or frame builder put a nice grid pattern into the surface of the 
> seatpost to keep it in place (Chris Kelly in Nevada City, Ca. has done that 
> for me with other frames).  At any rate, the Promax seat post is the one to 
> get in my opinion, and although it is kind of long, it only weighs about 9 
> ounces (and, of course, it can easily be cut down).
> Cheers,
> Karl
> Weimar, CA.  
>
> On Tue, Oct 19, 2021 at 10:37 AM lconley  wrote:
>
>> Probably voided the warranty, but the Bombadil would have been useless to 
>> me without the setback seatpost, I have a very long torso. It was on sale 
>> for $1800 brand new (normally $3000 back then) from Rivendell and was the 
>> correct 52cm for my legs, so I was going to make it work. Rivendell 
>> recommended a Hunqapillar for a touring bike for me, but Bombadil on sale 
>> was less expensive. i really didn't have to hone that much, the seatpost is 
>> a little less than 27.2 and the bike was a little more than 27.0, so the 
>> tube thickness removed was less than 1.0 mm.
>>
>> Laing
>>
>> On Tuesday, October 19, 2021 at 12:24:06 PM UTC-4 Hugh Smitham wrote:
>>
>>> I agree the lugs used (no matter the design) accept the same OS diameter 
>>> tubing but Rivendell went with thicker walled tubing. The question is why? 
>>> To me Grant not wanting to ream out the seat tube could effectively be 
>>> solved by choosing a thinner walled tubing. I think it's a structural 
>>> decision as I mentioned before. Laing, I wonder if by reaming out the 
>>> inside of the seat tube you are voiding the warranty? Probably NBD unless 
>>> you ride like Manny and need all the extra gussets and tube wall thickness. 
>>>
>>> David, basically my issue boils down to lack of availability which 
>>> obviously has been exacerbated by the pandemics supply chain disruption. 
>>> Yet still if I want a 27.2 post NBD.
>>>
>>> Eric and Laing, I agree with a lugged post in 26.8mm please!
>>>  
>>> ~Hugh
>>>
>>> “Life is like riding a bicycle. To keep your balance, you must keep 
>>> moving.” ― Albert Einstein
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>>>
 Laing, your point is exactly my point.  If you use the same lugs you do 
 not change the OD otherwise the lugs would not work.  If you want to use 
 the same lugs and want a thicker tube, then it must get thicker on the 
 inside, so the inner diameter must decrease with a thicker tube.  That's 
 my 
 understanding of why the seat post is now smaller in diameter.

 Toshi


 On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:

> Lugs attach to the OD of the tube and have nothing to do with the ID 
> of the tube. My second Sam Hillborne, in orange metalflake,  had the same 
> lugs as my 1st, but used the 26.8 seatpost.
> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I 
> am going to call this latest creation Conley's Crustendell Clementine 
> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till 
> December). I love a good alliteration. The black fork even matches the 
> black Clementine.
>
> Laing Conley
> Delray Beach FL
>
> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com 
> wrote:
>
>> Hi Hugh, I had my little rant about this same issue back on Nov 24th 
>> last year.  I assumed the change on the Hillbornes was made when they 
>> changed the style of the seat lug.  The ends of the seat stays on my 
>> 2015 
>> Hillborne (sidepull brakes) where they meet the seat lug are of a 
>> different 
>> style than the current models.  I assumed that was the reason, but I 
>> notice 
>> the Platypus and the Appaloosa use the same style as my Hillborne, but 
>> both 

[RBW] Re: 26.8mm seat post diameter??

[Paul Brodek]

IME back in the day 27.2mm was more common on higher-end frames than 
26.8mm, while 26.8mm was more common on mid-level frames. And 26.8mm was 
rarely seen on top-level frames. But my back in the day selling new bikes 
started in 1980, with pre-1980 experience being most repair/service. Maybe 
Saturday Mark goes back further.

Paul Brodek
Hillsdale, NJ USA

On Tuesday, October 19, 2021 at 1:28:12 PM UTC-4 Saturday Mark wrote:

> 26.8 was just as common as 27.2 back in the 70's and 80's, prior to the 
> now more . Riv has done 26.8 on a bunch of the step throughs since way back 
> when. 
>
> With that said, 26.8 is probably in short supply right now due to 
> pandemic, but...
>
> Nitto makes in crystal fellow and s83
> Thomson makes 26.8
> Kalloy Uno as well as their Crystal Fellow copy
> + a bunch of private label (Dimension, Sunlite, Origin8... etc) 
>
> On Monday, October 18, 2021 at 8:01:38 PM UTC-6 Hugh Smitham wrote:
>
>> Maybe someone can answer this, why in the heck did Rivendell start making 
>> the seat tube inside diameter 26.8mm on the new bikes? I believe hearing 
>> something about seat tube wall thickness. Don't get me wrong, I think the 
>> new Geos make for a better ride, but it's way easier to find posts in 
>> 27.2mm all day long. 
>>
>> Rivendell has the Nitto S83 in that diameter but it's a whopping 300 mm 
>> length 50 mm more than I need and also a whopping $128 before tax and 
>> shipping.
>>
>> Rant over n out.
>>
>> Hugh n LA
>>
>>
>>

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Re: [RBW] Re: 26.8mm seat post diameter??

[Eric Marth]

Dang, look at that Brooks!

On Wednesday, October 20, 2021 at 7:27:18 AM UTC-4 lconley wrote:

> Oops, slipped a decimal point there. Honed less than 0.1 mm.
>
> Another data point and a super comfortable out-of-production Brooks 
> Saddle. My Reynolds 531 Pashley Guv'nor is 27.0. Right now I am using a 
> straight 27.0 aluminum seat pin because I am using a double rail Brooks 
> B-73 with the Brooks seat clamp (I do have another Nitto lugged seatpost, a 
> Breezer adapter and the hone sitting around...). Note the seat post mounted 
> 3 speed shifter. 
>
> [image: IMG_1535 (2).jpg]
>
> Laing
>
> On Wednesday, October 20, 2021 at 2:22:24 AM UTC-4 Hugh Smitham wrote:
>
>> Laing,
>>
>> Got it. I figured it was a minimal amount to hone off and you layed out 
>> your logic for moving forward, which is sound. Saving $1200 is significant, 
>> thanks for the explanation.
>>
>> ~Hugh
>>
>> “Life is like riding a bicycle. To keep your balance, you must keep 
>> moving.” ― Albert Einstein
>>
>>
>>
>>
>>
>> On Tue, Oct 19, 2021 at 10:37 AM lconley  wrote:
>>
>>> Probably voided the warranty, but the Bombadil would have been useless 
>>> to me without the setback seatpost, I have a very long torso. It was on 
>>> sale for $1800 brand new (normally $3000 back then) from Rivendell and was 
>>> the correct 52cm for my legs, so I was going to make it work. Rivendell 
>>> recommended a Hunqapillar for a touring bike for me, but Bombadil on sale 
>>> was less expensive. i really didn't have to hone that much, the seatpost is 
>>> a little less than 27.2 and the bike was a little more than 27.0, so the 
>>> tube thickness removed was less than 1.0 mm.
>>>
>>> Laing
>>>
>>> On Tuesday, October 19, 2021 at 12:24:06 PM UTC-4 Hugh Smitham wrote:
>>>
 I agree the lugs used (no matter the design) accept the same OS 
 diameter tubing but Rivendell went with thicker walled tubing. The 
 question 
 is why? To me Grant not wanting to ream out the seat tube could 
 effectively 
 be solved by choosing a thinner walled tubing. I think it's a structural 
 decision as I mentioned before. Laing, I wonder if by reaming out the 
 inside of the seat tube you are voiding the warranty? Probably NBD unless 
 you ride like Manny and need all the extra gussets and tube wall 
 thickness. 

 David, basically my issue boils down to lack of availability which 
 obviously has been exacerbated by the pandemics supply chain disruption. 
 Yet still if I want a 27.2 post NBD.

 Eric and Laing, I agree with a lugged post in 26.8mm please!
  
 ~Hugh

 “Life is like riding a bicycle. To keep your balance, you must keep 
 moving.” ― Albert Einstein






 On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  
 wrote:

> Laing, your point is exactly my point.  If you use the same lugs you 
> do not change the OD otherwise the lugs would not work.  If you want to 
> use 
> the same lugs and want a thicker tube, then it must get thicker on the 
> inside, so the inner diameter must decrease with a thicker tube.  That's 
> my 
> understanding of why the seat post is now smaller in diameter.
>
> Toshi
>
>
> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>
>> Lugs attach to the OD of the tube and have nothing to do with the ID 
>> of the tube. My second Sam Hillborne, in orange metalflake,  had the 
>> same 
>> lugs as my 1st, but used the 26.8 seatpost.
>> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. 
>> I am going to call this latest creation Conley's Crustendell Clementine 
>> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till 
>> December). I love a good alliteration. The black fork even matches the 
>> black Clementine.
>>
>> Laing Conley
>> Delray Beach FL
>>
>> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com 
>> wrote:
>>
>>> Hi Hugh, I had my little rant about this same issue back on Nov 24th 
>>> last year.  I assumed the change on the Hillbornes was made when they 
>>> changed the style of the seat lug.  The ends of the seat stays on my 
>>> 2015 
>>> Hillborne (sidepull brakes) where they meet the seat lug are of a 
>>> different 
>>> style than the current models.  I assumed that was the reason, but I 
>>> notice 
>>> the Platypus and the Appaloosa use the same style as my Hillborne, but 
>>> both 
>>> those frame take 26.8mm seatposts.  Seems odd that the wall thickness 
>>> used 
>>> in the seat tube of the Hillborne would change after 2015, but I guess 
>>> it 
>>> did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on 
>>> this.  
>>> Definitely limits ones options.
>>>
>>> On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com 
>>> wrote:
>>>
 I ask

Re: [RBW] Re: 26.8mm seat post diameter??

[Nick Payne]

I have a couple of older Rivendell frames (a Romulus and a Bleriot) that 
both take 27.2 seatposts. I was a bit surprised, when I bought an Appaloosa 
frame, that it came with a 26.8 seatpost. As the seatpost was a slightly 
loose fit in the frame, and I don't like those single bolt Kalloy seatposts 
anyway, I searched around in my parts box of seatposts, and found an old 
27.0 Suntour Superbe Pro seatpost. A few minutes with an expanding reamer 
in the seat tube, and the Suntour post was a perfect fit.

Nick

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Re: [RBW] Re: 26.8mm seat post diameter??

[Garth]

Hugh, The Miche is just a regular road post that happens to have a distinct 
appearance that can appeal, or repel, a broad audience. The few posts 
labelled for track riding usually have the NJS certification. 44mm width 
rails are the norm for regular use, while track posts can be either 44 or 
30mm. What's funny is that right now Europe is still a good source for bike 
parts. Many of the shops for example sell the  350x26.8 Ritchey classic 
2-bolt seatpost in black, whereas it's not in the US. If I wanted a black 
post I'd surely consider one of those as it has a proper length clamp for 
the rails, 25mm setback, and decent bolts. 

Seatpost sizes have always been all over the place though. My '83 
Stumpjumper took a 26.4 or 26.6, I can't recall exactly. Posts came in .2mm 
increments from the likes of even Shimano. It really comes down to the 
builders choice of seat tube brand and spec. All my road racing steel 
frames took a 27.2 post, so I had Campy posts for those. But those frames 
all used a similar spec tubing that was used at the time. It was no 
"standard" , it was just what was chosen and copied. The bottom line is no 
one is forcing me or anyone to do business with Rivendell or any other mfr. 
The specs of stock Riv frames are usually listed in plain sight, if not 
it's up to the buyer to ask and not assume anything. If I order a custom 
frame I ask and confirm every last detail pertinent to fitting parts. Never 
assume anything ! There's a whole lot of things that Riv 
likes/promotes/claims that I either don't agree with or find not to be the 
case at all. None of that is going to stop me from doing business with them 
in the commonalities we do share, even if but one single thing. It's the 
same way with this group, friends and family or anyone else. Live and let 
Live, thriving on It's Infinite variety. 

On Wednesday, October 20, 2021 at 2:58:06 AM UTC-4 Hugh Smitham wrote:

> On Tue, Oct 19, 2021 at 11:20 AM Garth  wrote:
>
>> Here is the previous thread about the 26.8 seatpost size.
>>
>> https://groups.google.com/g/rbw-owners-bunch/c/2ivUFNnqt-I/m/_wGi3ofDBwAJ
>>
>> To Hugh and anyone else taking issue with the post size, by all means 
>> contact Grant @Riv. We can ask why 'till the comes come home here but not 
>> asking Grant/the designer is overlooking the obvious. Sure "they" @Riv may 
>> read this but to ask and complain without directing it to the source of the 
>> question is fruitless. Speculation speculates and that's all it does. 
>>
>
> Pretty much said earlier that perhaps I would ask the man himself. I'd say 
> the spirit of my post was, dang limited choices and did anyone know why 
> the diameter changed? As I see it this forum is to ask questions and to 
> some extent speculate. I personally don't see it as a problem, unless of 
> course it becomes a problem with wild conspiratorial chatter.   
>
>>
>> I'm no fan of 26.8 either as I have some new 27.2 black Salsa Shafts 
>> awaiting frames. Those are by far the best post I've used, including the 
>> 2-bolt Nitto. I don't mind some black parts myself as they are so easy 
>> clean and they never corrode.
>>
>
> Agree with the two bolt design and depending on the build black is fine. 
> My current Atlantis leans towards silver but I relented with some black 
> bits out of economic necessity. The next build will lean towards black so 
> no bias either way.
>
>>
>>
>> I've done a deep dive into 26.8 posts worldwide and while yes you can 
>> find some besides Nitto, the choices are meager. Then again even in 27.2 
>> the choice isn't great as it seems on the surface. Many if not most of the 
>> lower cost posts are various rebranded Kalloys. Myself I wouldn't use one, 
>> mostly due to their shallow bolt design and some with a small clamp area.  
>> If you're good at searching things online you'll find a few others but most 
>> are black, if that matters to you, and few if any have a full 23-25mm 
>> setback. So I ended right back to getting a Nitto S-83. The price is 
>> outrageous for a post if you really think about it.. but then again 
>>  the egomaniaclal "I'm so offended." doesn't discriminate as to 
>> what the offence may appear to be as long as it's fed. The only way to 
>> "win" that game is to not play at all and be on your very merry way.
>>
>
> Thank you for validating my point, just meager pickings to begin with and 
> most are unacceptable for my preference. I'm not too bad at searching 
> the internet but I'm no Steven Hawking level genius searching for 
> seat posts. Getting offended?? Over limited choices? I guess some might be 
> so egomaniacal but most are probably just a bit frustrated and a bit 
> curious. I'll leave it at that. 
>
> I'm not opposed to shelling out $120 or $130 for a well made post. Heck I 
> have a Paul Handsome post on a bike ~$200 but that was 27.2 and there by my 
> accounts more choices.
>
>>
>>
>> The best looking 26.8 post that does have some setback is a Miche 
>> Sup

Re: [RBW] Re: 26.8mm seat post diameter??

[Hugh Smitham]

On Tue, Oct 19, 2021 at 11:20 AM Garth  wrote:

> Here is the previous thread about the 26.8 seatpost size.
>
> https://groups.google.com/g/rbw-owners-bunch/c/2ivUFNnqt-I/m/_wGi3ofDBwAJ
>
> To Hugh and anyone else taking issue with the post size, by all means
> contact Grant @Riv. We can ask why 'till the comes come home here but not
> asking Grant/the designer is overlooking the obvious. Sure "they" @Riv may
> read this but to ask and complain without directing it to the source of the
> question is fruitless. Speculation speculates and that's all it does.
>

Pretty much said earlier that perhaps I would ask the man himself. I'd say
the spirit of my post was, dang limited choices and did anyone know why
the diameter changed? As I see it this forum is to ask questions and to
some extent speculate. I personally don't see it as a problem, unless of
course it becomes a problem with wild conspiratorial chatter.

>
> I'm no fan of 26.8 either as I have some new 27.2 black Salsa Shafts
> awaiting frames. Those are by far the best post I've used, including the
> 2-bolt Nitto. I don't mind some black parts myself as they are so easy
> clean and they never corrode.
>

Agree with the two bolt design and depending on the build black is fine. My
current Atlantis leans towards silver but I relented with some black bits
out of economic necessity. The next build will lean towards black so no
bias either way.

>
>
> I've done a deep dive into 26.8 posts worldwide and while yes you can find
> some besides Nitto, the choices are meager. Then again even in 27.2 the
> choice isn't great as it seems on the surface. Many if not most of the
> lower cost posts are various rebranded Kalloys. Myself I wouldn't use one,
> mostly due to their shallow bolt design and some with a small clamp area.
> If you're good at searching things online you'll find a few others but most
> are black, if that matters to you, and few if any have a full 23-25mm
> setback. So I ended right back to getting a Nitto S-83. The price is
> outrageous for a post if you really think about it.. but then again
>  the egomaniaclal "I'm so offended." doesn't discriminate as to
> what the offence may appear to be as long as it's fed. The only way to
> "win" that game is to not play at all and be on your very merry way.
>

Thank you for validating my point, just meager pickings to begin with and
most are unacceptable for my preference. I'm not too bad at searching
the internet but I'm no Steven Hawking level genius searching for
seat posts. Getting offended?? Over limited choices? I guess some might be
so egomaniacal but most are probably just a bit frustrated and a bit
curious. I'll leave it at that.

I'm not opposed to shelling out $120 or $130 for a well made post. Heck I
have a Paul Handsome post on a bike ~$200 but that was 27.2 and there by my
accounts more choices.

>
>
> The best looking 26.8 post that does have some setback is a Miche
> Supertype. Retroregression sells them in various colors but the silver has
> been out of stock since last year. They have gold and blue and red though
> . I would've gotten a gold one but decided to get a Nitto instead.
>

Thanks for the suggestion, the Miche Supertype isn't that considered a
track bike post? I honestly don't know what difference that would be? The
look isn't my favorite. I wish this post came in 26.8

https://www.sim.works/collections/featured/products/froggy-seatpost?variant=35858115461286


  ~Hugh

>
>>
>>
>>
>>
>>
>> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>>
>>> Laing, your point is exactly my point.  If you use the same lugs you do
>>> not change the OD otherwise the lugs would not work.  If you want to use
>>> the same lugs and want a thicker tube, then it must get thicker on the
>>> inside, so the inner diameter must decrease with a thicker tube.  That's my
>>> understanding of why the seat post is now smaller in diameter.
>>>
>>> Toshi
>>>
>>>
>>> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>>>
 Lugs attach to the OD of the tube and have nothing to do with the ID of
 the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs
 as my 1st, but used the 26.8 seatpost.
 Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I
 am going to call this latest creation Conley's Crustendell Clementine
 Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till
 December). I love a good alliteration. The black fork even matches the
 black Clementine.

 Laing Conley
 Delray Beach FL

 On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com
 wrote:

> Hi Hugh, I had my little rant about this same issue back on Nov 24th
> last year.  I assumed the change on the Hillbornes was made when they
> changed the style of the seat lug.  The ends of the seat stays on my 2015
> Hillborne (sidepull brakes) where they meet the seat lug are of a 
> different

Re: [RBW] Re: 26.8mm seat post diameter??

[Hugh Smitham]

Good ideas if I run into the same issue. I haven't had a seat post slip on
any of my Rivendell's but I have heard other's mention it, now my old
Italian race bike is a different story.

That Promax post is a decent option but I like the extra 5mm of set back
the s83 has. Alex Cycles has a s83 in Black with I'm considering since my
next build is orange and I'm going with more black.

~Hugh

“Life is like riding a bicycle. To keep your balance, you must keep
moving.” ― Albert Einstein






On Tue, Oct 19, 2021 at 11:02 AM Karl Wilcox  wrote:

> I decided to replace the 26.8 seat post that came with my Roadini; I
> discovered that 'Promax' makes a nice and light and high quality seatpost
> in 26.8 (it is 'SP-1' model and it comes in Red, Blue, Gold and Black (no
> silver).  It has served very nicely.  I also had trouble with both of my
> 26.8 seat posts slipping down over time with the Roadini frame.  I ended up
> using some carbon paste to solve that problem.  You can also have a
> machinist or frame builder put a nice grid pattern into the surface of the
> seatpost to keep it in place (Chris Kelly in Nevada City, Ca. has done that
> for me with other frames).  At any rate, the Promax seat post is the one to
> get in my opinion, and although it is kind of long, it only weighs about 9
> ounces (and, of course, it can easily be cut down).
> Cheers,
> Karl
> Weimar, CA.
>
> On Tue, Oct 19, 2021 at 10:37 AM lconley  wrote:
>
>> Probably voided the warranty, but the Bombadil would have been useless to
>> me without the setback seatpost, I have a very long torso. It was on sale
>> for $1800 brand new (normally $3000 back then) from Rivendell and was the
>> correct 52cm for my legs, so I was going to make it work. Rivendell
>> recommended a Hunqapillar for a touring bike for me, but Bombadil on sale
>> was less expensive. i really didn't have to hone that much, the seatpost is
>> a little less than 27.2 and the bike was a little more than 27.0, so the
>> tube thickness removed was less than 1.0 mm.
>>
>> Laing
>>
>> On Tuesday, October 19, 2021 at 12:24:06 PM UTC-4 Hugh Smitham wrote:
>>
>>> I agree the lugs used (no matter the design) accept the same OS diameter
>>> tubing but Rivendell went with thicker walled tubing. The question is why?
>>> To me Grant not wanting to ream out the seat tube could effectively be
>>> solved by choosing a thinner walled tubing. I think it's a structural
>>> decision as I mentioned before. Laing, I wonder if by reaming out the
>>> inside of the seat tube you are voiding the warranty? Probably NBD unless
>>> you ride like Manny and need all the extra gussets and tube wall thickness.
>>>
>>> David, basically my issue boils down to lack of availability which
>>> obviously has been exacerbated by the pandemics supply chain disruption.
>>> Yet still if I want a 27.2 post NBD.
>>>
>>> Eric and Laing, I agree with a lugged post in 26.8mm please!
>>>
>>> ~Hugh
>>>
>>> “Life is like riding a bicycle. To keep your balance, you must keep
>>> moving.” ― Albert Einstein
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>>>
 Laing, your point is exactly my point.  If you use the same lugs you do
 not change the OD otherwise the lugs would not work.  If you want to use
 the same lugs and want a thicker tube, then it must get thicker on the
 inside, so the inner diameter must decrease with a thicker tube.  That's my
 understanding of why the seat post is now smaller in diameter.

 Toshi


 On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:

> Lugs attach to the OD of the tube and have nothing to do with the ID
> of the tube. My second Sam Hillborne, in orange metalflake,  had the same
> lugs as my 1st, but used the 26.8 seatpost.
> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I
> am going to call this latest creation Conley's Crustendell Clementine
> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till
> December). I love a good alliteration. The black fork even matches the
> black Clementine.
>
> Laing Conley
> Delray Beach FL
>
> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com
> wrote:
>
>> Hi Hugh, I had my little rant about this same issue back on Nov 24th
>> last year.  I assumed the change on the Hillbornes was made when they
>> changed the style of the seat lug.  The ends of the seat stays on my 2015
>> Hillborne (sidepull brakes) where they meet the seat lug are of a 
>> different
>> style than the current models.  I assumed that was the reason, but I 
>> notice
>> the Platypus and the Appaloosa use the same style as my Hillborne, but 
>> both
>> those frame take 26.8mm seatposts.  Seems odd that the wall thickness 
>> used
>> in the seat tube of the Hillborne would change after 2015, but I guess it
>> did, hence the change to 26.8mm seatposts.  A

Re: [RBW] Re: 26.8mm seat post diameter??

[Hugh Smitham]

Laing,

Got it. I figured it was a minimal amount to hone off and you layed out
your logic for moving forward, which is sound. Saving $1200 is significant,
thanks for the explanation.

~Hugh

“Life is like riding a bicycle. To keep your balance, you must keep
moving.” ― Albert Einstein






On Tue, Oct 19, 2021 at 10:37 AM lconley  wrote:

> Probably voided the warranty, but the Bombadil would have been useless to
> me without the setback seatpost, I have a very long torso. It was on sale
> for $1800 brand new (normally $3000 back then) from Rivendell and was the
> correct 52cm for my legs, so I was going to make it work. Rivendell
> recommended a Hunqapillar for a touring bike for me, but Bombadil on sale
> was less expensive. i really didn't have to hone that much, the seatpost is
> a little less than 27.2 and the bike was a little more than 27.0, so the
> tube thickness removed was less than 1.0 mm.
>
> Laing
>
> On Tuesday, October 19, 2021 at 12:24:06 PM UTC-4 Hugh Smitham wrote:
>
>> I agree the lugs used (no matter the design) accept the same OS diameter
>> tubing but Rivendell went with thicker walled tubing. The question is why?
>> To me Grant not wanting to ream out the seat tube could effectively be
>> solved by choosing a thinner walled tubing. I think it's a structural
>> decision as I mentioned before. Laing, I wonder if by reaming out the
>> inside of the seat tube you are voiding the warranty? Probably NBD unless
>> you ride like Manny and need all the extra gussets and tube wall thickness.
>>
>> David, basically my issue boils down to lack of availability which
>> obviously has been exacerbated by the pandemics supply chain disruption.
>> Yet still if I want a 27.2 post NBD.
>>
>> Eric and Laing, I agree with a lugged post in 26.8mm please!
>>
>> ~Hugh
>>
>> “Life is like riding a bicycle. To keep your balance, you must keep
>> moving.” ― Albert Einstein
>>
>>
>>
>>
>>
>>
>> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>>
>>> Laing, your point is exactly my point.  If you use the same lugs you do
>>> not change the OD otherwise the lugs would not work.  If you want to use
>>> the same lugs and want a thicker tube, then it must get thicker on the
>>> inside, so the inner diameter must decrease with a thicker tube.  That's my
>>> understanding of why the seat post is now smaller in diameter.
>>>
>>> Toshi
>>>
>>>
>>> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>>>
 Lugs attach to the OD of the tube and have nothing to do with the ID of
 the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs
 as my 1st, but used the 26.8 seatpost.
 Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I
 am going to call this latest creation Conley's Crustendell Clementine
 Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till
 December). I love a good alliteration. The black fork even matches the
 black Clementine.

 Laing Conley
 Delray Beach FL

 On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com
 wrote:

> Hi Hugh, I had my little rant about this same issue back on Nov 24th
> last year.  I assumed the change on the Hillbornes was made when they
> changed the style of the seat lug.  The ends of the seat stays on my 2015
> Hillborne (sidepull brakes) where they meet the seat lug are of a 
> different
> style than the current models.  I assumed that was the reason, but I 
> notice
> the Platypus and the Appaloosa use the same style as my Hillborne, but 
> both
> those frame take 26.8mm seatposts.  Seems odd that the wall thickness used
> in the seat tube of the Hillborne would change after 2015, but I guess it
> did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.
> Definitely limits ones options.
>
> On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com
> wrote:
>
>> I asked Will about this recently and he said something to the effect
>> that Grant didn't want to ream out as much from the seat tube hence 
>> thicker
>> tube and thinner post.
>>
>> I'm with Laing and would like that lugged seatpost in a 26.8, please!
>>
>> On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:
>>
>>> Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago
>>> when they started using thicker tubing across the board. My 1st 
>>> Rivendell
>>> (of 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 
>>> and
>>> was 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since 
>>> has
>>> been 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the 
>>> Bombadil
>>> with a 27.0. I just wish that they would issue the lugged seatpost in 
>>> 26.8.
>>> I put a 27.2 lugged seatpost in the Bombadil by honing the ID if the 
>>> seat
>>> tube with an automo

Re: [RBW] Re: 26.8mm seat post diameter??

[Drw]

Ill add my name to the list of being disappointed by 28.6. I had a 
hunqapillar from before the switch that was 27.2, sold it and bought a new 
waterford atlantis a couple years ago. I was pretty bummed that the 
seatpost had been shrunk on what, for me, was almost a custom bike (also 
why a supposedly less heavy duty bike needed a more heavy duty seat tube). 
i suppose for a lot of people, theyll get the kalloy post and never 
know/care/change it, but i do wish i was told.  i suppose i should stock a 
couple extras, since it seems like nitto barely makes them now and while 
kalloy does, who knows how long that will last. 

On Tuesday, October 19, 2021 at 4:32:35 PM UTC-7 divis...@gmail.com wrote:

>
> "Always"? That's a pretty long time.
>
> https://www.sheldonbrown.com/seatpost-sizes.html
>
> I own 15 theoretically buildable/rideable steel framesets (3 Follis, 2 
> Raleigh, 2 VooDoo, 1 each Bertin, Bianchi, Lambert, Mercier, Peugeot, 
> Schwinn, Trek, a no-name frame that I suspect to be Tim Neenan, a Santa 
> Cruz builder who went on to design the Sequoia at Specialized). The age 
> range is 1950-1999; the tubing includes house brands (Peugeot, Mercier), 
> Reynolds 531, Columbus SL, Tange (the VooDoos), Vitus, Durifort, Accles & 
> Pollock and Trusty.
>
> The seatpost diameters range from 25.4-27.2. While the largest pool is at 
> 27.2 (1988 Bianchi Superleggera, 1974 Schwinn Paramount, the Neenan, 1999 
> VooDoo Hoodoo), there's a pool at 26.8 that's nearly as large (Lambert, 
> 1969 Raleigh Competition, 1995 VooDoo Hoodoo). The two French gaspipey 
> bikes from Peugeot and Mercier are both 25.4; the Peugeot is a thickwall 
> 50s 650B townie frame, while the Bike Boom Mercier has a sleeve for a 
> cheapy steel seatpin that I haven't tried to extract, so I don't know what 
> the real seatpost size is.
>
> In general, my older French frames are either gaspipe with 25.4, metric 
> Reynolds 531 at 26.4, or non-Reynolds name brand tubing with 26.0-26.2. In 
> Imperial tubing, DB Reynolds/Columbus/Tange is 27.0-27.4; straight tube 
> Reynolds is 26.4-26.8.
>
> Even then, it depends on the build environment. Did the frames come off a 
> production line, or were they made by individual craftspeople? How much 
> time did they have available? Better-quality frames made by skilled 
> builders out of better-quality tubing usually have larger diameter 
> seatposts, because the frames use stronger tubing which can have 
> correspondingly thinner walls, so there's a wider diameter for a setapost. 
> If the builder has more time, they can ream the seat tube out to fit a 
> larger seatpost (Waterford does this as a general practice, which is why 
> their standard seatpost for 531 frames is 27.4). But on a production line 
> (Schwinn, Raleigh, Peugeot, Gitane etc) where the principle was to get the 
> bike down the line, the seatpost-install guy might try to fit the 
> theoretical "ideal" seatpost (say 27.2, for Imperial Reynolds 531 DB), find 
> that it doesn't fit (maybe due to distortion in the seat cluster by the 
> heat of the brazing, or maybe the torch guy accidentally flipped the seat 
> tube upside down and the thick part is at the seat cluster instead of the 
> BB shell), and so they stick a 27.0 seatpost in, quick and dirty. Get the 
> product down the line! That's my suspicion as to why my 1984 Trek 720 
> (Imperial Reynolds 531c DB) has a 27.0, instead of the 27.2 post in the 
> specs.
>
> So, the size of the seatpost is the size that fits the frame, unless 
> somebody chooses to do something special to the frame. Probably the biggest 
> reason that the industry treats 27.2 as a de facto standard now is because 
> of several decades of oversize tubing aluminum frames, where a 27.2 
> seatpost will fit into tubing that's already got thick walls.
>
> Peter Adler
> Berkeley, CA/USA
>
> On Monday, October 18, 2021 at 8:57:16 PM UTC-7 fraze...@gmail.com wrote:
>
>> Yeah, when I finally made the decision to actually buy a Rivendell 
>> instead of just lusting after one...I was actually surprised that the 
>> frames aren't spec'd with 27.2 seat tubes...its always been kinda the 
>> unofficial size for steel frames. 
>>
>> It's Grant though, so 🤘
>>
>

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Re: [RBW] Re: 26.8mm seat post diameter??

[Peter Adler]

"Always"? That's a pretty long time.

https://www.sheldonbrown.com/seatpost-sizes.html

I own 15 theoretically buildable/rideable steel framesets (3 Follis, 2 
Raleigh, 2 VooDoo, 1 each Bertin, Bianchi, Lambert, Mercier, Peugeot, 
Schwinn, Trek, a no-name frame that I suspect to be Tim Neenan, a Santa 
Cruz builder who went on to design the Sequoia at Specialized). The age 
range is 1950-1999; the tubing includes house brands (Peugeot, Mercier), 
Reynolds 531, Columbus SL, Tange (the VooDoos), Vitus, Durifort, Accles & 
Pollock and Trusty.

The seatpost diameters range from 25.4-27.2. While the largest pool is at 
27.2 (1988 Bianchi Superleggera, 1974 Schwinn Paramount, the Neenan, 1999 
VooDoo Hoodoo), there's a pool at 26.8 that's nearly as large (Lambert, 
1969 Raleigh Competition, 1995 VooDoo Hoodoo). The two French gaspipey 
bikes from Peugeot and Mercier are both 25.4; the Peugeot is a thickwall 
50s 650B townie frame, while the Bike Boom Mercier has a sleeve for a 
cheapy steel seatpin that I haven't tried to extract, so I don't know what 
the real seatpost size is.

In general, my older French frames are either gaspipe with 25.4, metric 
Reynolds 531 at 26.4, or non-Reynolds name brand tubing with 26.0-26.2. In 
Imperial tubing, DB Reynolds/Columbus/Tange is 27.0-27.4; straight tube 
Reynolds is 26.4-26.8.

Even then, it depends on the build environment. Did the frames come off a 
production line, or were they made by individual craftspeople? How much 
time did they have available? Better-quality frames made by skilled 
builders out of better-quality tubing usually have larger diameter 
seatposts, because the frames use stronger tubing which can have 
correspondingly thinner walls, so there's a wider diameter for a setapost. 
If the builder has more time, they can ream the seat tube out to fit a 
larger seatpost (Waterford does this as a general practice, which is why 
their standard seatpost for 531 frames is 27.4). But on a production line 
(Schwinn, Raleigh, Peugeot, Gitane etc) where the principle was to get the 
bike down the line, the seatpost-install guy might try to fit the 
theoretical "ideal" seatpost (say 27.2, for Imperial Reynolds 531 DB), find 
that it doesn't fit (maybe due to distortion in the seat cluster by the 
heat of the brazing, or maybe the torch guy accidentally flipped the seat 
tube upside down and the thick part is at the seat cluster instead of the 
BB shell), and so they stick a 27.0 seatpost in, quick and dirty. Get the 
product down the line! That's my suspicion as to why my 1984 Trek 720 
(Imperial Reynolds 531c DB) has a 27.0, instead of the 27.2 post in the 
specs.

So, the size of the seatpost is the size that fits the frame, unless 
somebody chooses to do something special to the frame. Probably the biggest 
reason that the industry treats 27.2 as a de facto standard now is because 
of several decades of oversize tubing aluminum frames, where a 27.2 
seatpost will fit into tubing that's already got thick walls.

Peter Adler
Berkeley, CA/USA

On Monday, October 18, 2021 at 8:57:16 PM UTC-7 fraze...@gmail.com wrote:

> Yeah, when I finally made the decision to actually buy a Rivendell instead 
> of just lusting after one...I was actually surprised that the frames aren't 
> spec'd with 27.2 seat tubes...its always been kinda the unofficial size for 
> steel frames. 
>
> It's Grant though, so 🤘
>

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Re: [RBW] Re: 26.8mm seat post diameter??

[Joe Bernard]

What I appreciate about that thread is the reminder of how little I had to 
say on the subject and how often I said it. Why was I talking?? 🤦

Joe "I have nothing to say.. repeatedly" Bernard

On Tuesday, October 19, 2021 at 11:19:59 AM UTC-7 Garth wrote:

> Here is the previous thread about the 26.8 seatpost size.
>
> https://groups.google.com/g/rbw-owners-bunch/c/2ivUFNnqt-I/m/_wGi3ofDBwAJ
>
> To Hugh and anyone else taking issue with the post size, by all means 
> contact Grant @Riv. We can ask why 'till the comes come home here but not 
> asking Grant/the designer is overlooking the obvious. Sure "they" @Riv may 
> read this but to ask and complain without directing it to the source of the 
> question is fruitless. Speculation speculates and that's all it does.  
>
> I'm no fan of 26.8 either as I have some new 27.2 black Salsa Shafts 
> awaiting frames. Those are by far the best post I've used, including the 
> 2-bolt Nitto. I don't mind some black parts myself as they are so easy 
> clean and they never corrode. 
>
> I've done a deep dive into 26.8 posts worldwide and while yes you can find 
> some besides Nitto, the choices are meager. Then again even in 27.2 the 
> choice isn't great as it seems on the surface. Many if not most of the 
> lower cost posts are various rebranded Kalloys. Myself I wouldn't use one, 
> mostly due to their shallow bolt design and some with a small clamp area.  
> If you're good at searching things online you'll find a few others but most 
> are black, if that matters to you, and few if any have a full 23-25mm 
> setback. So I ended right back to getting a Nitto S-83. The price is 
> outrageous for a post if you really think about it.. but then again 
>  the egomaniaclal "I'm so offended." doesn't discriminate as to 
> what the offence may appear to be as long as it's fed. The only way to 
> "win" that game is to not play at all and be on your very merry way. 
>
> The best looking 26.8 post that does have some setback is a Miche 
> Supertype. Retroregression sells them in various colors but the silver has 
> been out of stock since last year. They have gold and blue and red though 
> . I would've gotten a gold one but decided to get a Nitto instead. 
> On Tuesday, October 19, 2021 at 12:24:06 PM UTC-4 Hugh Smitham wrote:
>
>> I agree the lugs used (no matter the design) accept the same OS diameter 
>> tubing but Rivendell went with thicker walled tubing. The question is why? 
>> To me Grant not wanting to ream out the seat tube could effectively be 
>> solved by choosing a thinner walled tubing. I think it's a structural 
>> decision as I mentioned before. Laing, I wonder if by reaming out the 
>> inside of the seat tube you are voiding the warranty? Probably NBD unless 
>> you ride like Manny and need all the extra gussets and tube wall thickness. 
>>
>> David, basically my issue boils down to lack of availability which 
>> obviously has been exacerbated by the pandemics supply chain disruption. 
>> Yet still if I want a 27.2 post NBD.
>>
>> Eric and Laing, I agree with a lugged post in 26.8mm please!
>>  
>> ~Hugh
>>
>> “Life is like riding a bicycle. To keep your balance, you must keep 
>> moving.” ― Albert Einstein
>>
>>
>>
>>
>>
>>
>> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>>
>>> Laing, your point is exactly my point.  If you use the same lugs you do 
>>> not change the OD otherwise the lugs would not work.  If you want to use 
>>> the same lugs and want a thicker tube, then it must get thicker on the 
>>> inside, so the inner diameter must decrease with a thicker tube.  That's my 
>>> understanding of why the seat post is now smaller in diameter.
>>>
>>> Toshi
>>>
>>>
>>> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>>>
 Lugs attach to the OD of the tube and have nothing to do with the ID of 
 the tube. My second Sam Hillborne, in orange metalflake,  had the same 
 lugs 
 as my 1st, but used the 26.8 seatpost.
 Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I 
 am going to call this latest creation Conley's Crustendell Clementine 
 Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till 
 December). I love a good alliteration. The black fork even matches the 
 black Clementine.

 Laing Conley
 Delray Beach FL

 On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com 
 wrote:

> Hi Hugh, I had my little rant about this same issue back on Nov 24th 
> last year.  I assumed the change on the Hillbornes was made when they 
> changed the style of the seat lug.  The ends of the seat stays on my 2015 
> Hillborne (sidepull brakes) where they meet the seat lug are of a 
> different 
> style than the current models.  I assumed that was the reason, but I 
> notice 
> the Platypus and the Appaloosa use the same style as my Hillborne, but 
> both 
> those frame take 26.8mm seatposts.  Seems odd 

Re: [RBW] Re: 26.8mm seat post diameter??

[Garth]

Here is the previous thread about the 26.8 seatpost size.

https://groups.google.com/g/rbw-owners-bunch/c/2ivUFNnqt-I/m/_wGi3ofDBwAJ

To Hugh and anyone else taking issue with the post size, by all means 
contact Grant @Riv. We can ask why 'till the comes come home here but not 
asking Grant/the designer is overlooking the obvious. Sure "they" @Riv may 
read this but to ask and complain without directing it to the source of the 
question is fruitless. Speculation speculates and that's all it does.  

I'm no fan of 26.8 either as I have some new 27.2 black Salsa Shafts 
awaiting frames. Those are by far the best post I've used, including the 
2-bolt Nitto. I don't mind some black parts myself as they are so easy 
clean and they never corrode. 

I've done a deep dive into 26.8 posts worldwide and while yes you can find 
some besides Nitto, the choices are meager. Then again even in 27.2 the 
choice isn't great as it seems on the surface. Many if not most of the 
lower cost posts are various rebranded Kalloys. Myself I wouldn't use one, 
mostly due to their shallow bolt design and some with a small clamp area.  
If you're good at searching things online you'll find a few others but most 
are black, if that matters to you, and few if any have a full 23-25mm 
setback. So I ended right back to getting a Nitto S-83. The price is 
outrageous for a post if you really think about it.. but then again 
 the egomaniaclal "I'm so offended." doesn't discriminate as to 
what the offence may appear to be as long as it's fed. The only way to 
"win" that game is to not play at all and be on your very merry way. 

The best looking 26.8 post that does have some setback is a Miche 
Supertype. Retroregression sells them in various colors but the silver has 
been out of stock since last year. They have gold and blue and red though 
. I would've gotten a gold one but decided to get a Nitto instead. 
On Tuesday, October 19, 2021 at 12:24:06 PM UTC-4 Hugh Smitham wrote:

> I agree the lugs used (no matter the design) accept the same OS diameter 
> tubing but Rivendell went with thicker walled tubing. The question is why? 
> To me Grant not wanting to ream out the seat tube could effectively be 
> solved by choosing a thinner walled tubing. I think it's a structural 
> decision as I mentioned before. Laing, I wonder if by reaming out the 
> inside of the seat tube you are voiding the warranty? Probably NBD unless 
> you ride like Manny and need all the extra gussets and tube wall thickness. 
>
> David, basically my issue boils down to lack of availability which 
> obviously has been exacerbated by the pandemics supply chain disruption. 
> Yet still if I want a 27.2 post NBD.
>
> Eric and Laing, I agree with a lugged post in 26.8mm please!
>  
> ~Hugh
>
> “Life is like riding a bicycle. To keep your balance, you must keep 
> moving.” ― Albert Einstein
>
>
>
>
>
>
> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>
>> Laing, your point is exactly my point.  If you use the same lugs you do 
>> not change the OD otherwise the lugs would not work.  If you want to use 
>> the same lugs and want a thicker tube, then it must get thicker on the 
>> inside, so the inner diameter must decrease with a thicker tube.  That's my 
>> understanding of why the seat post is now smaller in diameter.
>>
>> Toshi
>>
>>
>> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>>
>>> Lugs attach to the OD of the tube and have nothing to do with the ID of 
>>> the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs 
>>> as my 1st, but used the 26.8 seatpost.
>>> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I 
>>> am going to call this latest creation Conley's Crustendell Clementine 
>>> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till 
>>> December). I love a good alliteration. The black fork even matches the 
>>> black Clementine.
>>>
>>> Laing Conley
>>> Delray Beach FL
>>>
>>> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com 
>>> wrote:
>>>
 Hi Hugh, I had my little rant about this same issue back on Nov 24th 
 last year.  I assumed the change on the Hillbornes was made when they 
 changed the style of the seat lug.  The ends of the seat stays on my 2015 
 Hillborne (sidepull brakes) where they meet the seat lug are of a 
 different 
 style than the current models.  I assumed that was the reason, but I 
 notice 
 the Platypus and the Appaloosa use the same style as my Hillborne, but 
 both 
 those frame take 26.8mm seatposts.  Seems odd that the wall thickness used 
 in the seat tube of the Hillborne would change after 2015, but I guess it 
 did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.  
 Definitely limits ones options.

 On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com 
 wrote:

> I asked Will about this recently and he said something to 

Re: [RBW] Re: 26.8mm seat post diameter??

[Karl Wilcox]

I decided to replace the 26.8 seat post that came with my Roadini; I
discovered that 'Promax' makes a nice and light and high quality seatpost
in 26.8 (it is 'SP-1' model and it comes in Red, Blue, Gold and Black (no
silver).  It has served very nicely.  I also had trouble with both of my
26.8 seat posts slipping down over time with the Roadini frame.  I ended up
using some carbon paste to solve that problem.  You can also have a
machinist or frame builder put a nice grid pattern into the surface of the
seatpost to keep it in place (Chris Kelly in Nevada City, Ca. has done that
for me with other frames).  At any rate, the Promax seat post is the one to
get in my opinion, and although it is kind of long, it only weighs about 9
ounces (and, of course, it can easily be cut down).
Cheers,
Karl
Weimar, CA.

On Tue, Oct 19, 2021 at 10:37 AM lconley  wrote:

> Probably voided the warranty, but the Bombadil would have been useless to
> me without the setback seatpost, I have a very long torso. It was on sale
> for $1800 brand new (normally $3000 back then) from Rivendell and was the
> correct 52cm for my legs, so I was going to make it work. Rivendell
> recommended a Hunqapillar for a touring bike for me, but Bombadil on sale
> was less expensive. i really didn't have to hone that much, the seatpost is
> a little less than 27.2 and the bike was a little more than 27.0, so the
> tube thickness removed was less than 1.0 mm.
>
> Laing
>
> On Tuesday, October 19, 2021 at 12:24:06 PM UTC-4 Hugh Smitham wrote:
>
>> I agree the lugs used (no matter the design) accept the same OS diameter
>> tubing but Rivendell went with thicker walled tubing. The question is why?
>> To me Grant not wanting to ream out the seat tube could effectively be
>> solved by choosing a thinner walled tubing. I think it's a structural
>> decision as I mentioned before. Laing, I wonder if by reaming out the
>> inside of the seat tube you are voiding the warranty? Probably NBD unless
>> you ride like Manny and need all the extra gussets and tube wall thickness.
>>
>> David, basically my issue boils down to lack of availability which
>> obviously has been exacerbated by the pandemics supply chain disruption.
>> Yet still if I want a 27.2 post NBD.
>>
>> Eric and Laing, I agree with a lugged post in 26.8mm please!
>>
>> ~Hugh
>>
>> “Life is like riding a bicycle. To keep your balance, you must keep
>> moving.” ― Albert Einstein
>>
>>
>>
>>
>>
>>
>> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>>
>>> Laing, your point is exactly my point.  If you use the same lugs you do
>>> not change the OD otherwise the lugs would not work.  If you want to use
>>> the same lugs and want a thicker tube, then it must get thicker on the
>>> inside, so the inner diameter must decrease with a thicker tube.  That's my
>>> understanding of why the seat post is now smaller in diameter.
>>>
>>> Toshi
>>>
>>>
>>> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>>>
 Lugs attach to the OD of the tube and have nothing to do with the ID of
 the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs
 as my 1st, but used the 26.8 seatpost.
 Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I
 am going to call this latest creation Conley's Crustendell Clementine
 Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till
 December). I love a good alliteration. The black fork even matches the
 black Clementine.

 Laing Conley
 Delray Beach FL

 On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com
 wrote:

> Hi Hugh, I had my little rant about this same issue back on Nov 24th
> last year.  I assumed the change on the Hillbornes was made when they
> changed the style of the seat lug.  The ends of the seat stays on my 2015
> Hillborne (sidepull brakes) where they meet the seat lug are of a 
> different
> style than the current models.  I assumed that was the reason, but I 
> notice
> the Platypus and the Appaloosa use the same style as my Hillborne, but 
> both
> those frame take 26.8mm seatposts.  Seems odd that the wall thickness used
> in the seat tube of the Hillborne would change after 2015, but I guess it
> did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.
> Definitely limits ones options.
>
> On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com
> wrote:
>
>> I asked Will about this recently and he said something to the effect
>> that Grant didn't want to ream out as much from the seat tube hence 
>> thicker
>> tube and thinner post.
>>
>> I'm with Laing and would like that lugged seatpost in a 26.8, please!
>>
>> On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:
>>
>>> Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago
>>> when they started using thicker tubing across the

Re: [RBW] Re: 26.8mm seat post diameter??

[lconley]

Probably voided the warranty, but the Bombadil would have been useless to 
me without the setback seatpost, I have a very long torso. It was on sale 
for $1800 brand new (normally $3000 back then) from Rivendell and was the 
correct 52cm for my legs, so I was going to make it work. Rivendell 
recommended a Hunqapillar for a touring bike for me, but Bombadil on sale 
was less expensive. i really didn't have to hone that much, the seatpost is 
a little less than 27.2 and the bike was a little more than 27.0, so the 
tube thickness removed was less than 1.0 mm.

Laing

On Tuesday, October 19, 2021 at 12:24:06 PM UTC-4 Hugh Smitham wrote:

> I agree the lugs used (no matter the design) accept the same OS diameter 
> tubing but Rivendell went with thicker walled tubing. The question is why? 
> To me Grant not wanting to ream out the seat tube could effectively be 
> solved by choosing a thinner walled tubing. I think it's a structural 
> decision as I mentioned before. Laing, I wonder if by reaming out the 
> inside of the seat tube you are voiding the warranty? Probably NBD unless 
> you ride like Manny and need all the extra gussets and tube wall thickness. 
>
> David, basically my issue boils down to lack of availability which 
> obviously has been exacerbated by the pandemics supply chain disruption. 
> Yet still if I want a 27.2 post NBD.
>
> Eric and Laing, I agree with a lugged post in 26.8mm please!
>  
> ~Hugh
>
> “Life is like riding a bicycle. To keep your balance, you must keep 
> moving.” ― Albert Einstein
>
>
>
>
>
>
> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>
>> Laing, your point is exactly my point.  If you use the same lugs you do 
>> not change the OD otherwise the lugs would not work.  If you want to use 
>> the same lugs and want a thicker tube, then it must get thicker on the 
>> inside, so the inner diameter must decrease with a thicker tube.  That's my 
>> understanding of why the seat post is now smaller in diameter.
>>
>> Toshi
>>
>>
>> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>>
>>> Lugs attach to the OD of the tube and have nothing to do with the ID of 
>>> the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs 
>>> as my 1st, but used the 26.8 seatpost.
>>> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I 
>>> am going to call this latest creation Conley's Crustendell Clementine 
>>> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till 
>>> December). I love a good alliteration. The black fork even matches the 
>>> black Clementine.
>>>
>>> Laing Conley
>>> Delray Beach FL
>>>
>>> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com 
>>> wrote:
>>>
 Hi Hugh, I had my little rant about this same issue back on Nov 24th 
 last year.  I assumed the change on the Hillbornes was made when they 
 changed the style of the seat lug.  The ends of the seat stays on my 2015 
 Hillborne (sidepull brakes) where they meet the seat lug are of a 
 different 
 style than the current models.  I assumed that was the reason, but I 
 notice 
 the Platypus and the Appaloosa use the same style as my Hillborne, but 
 both 
 those frame take 26.8mm seatposts.  Seems odd that the wall thickness used 
 in the seat tube of the Hillborne would change after 2015, but I guess it 
 did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.  
 Definitely limits ones options.

 On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com 
 wrote:

> I asked Will about this recently and he said something to the effect 
> that Grant didn't want to ream out as much from the seat tube hence 
> thicker 
> tube and thinner post. 
>
> I'm with Laing and would like that lugged seatpost in a 26.8, please! 
>
> On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:
>
>> Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago 
>> when they started using thicker tubing across the board. My 1st 
>> Rivendell 
>> (of 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 
>> and 
>> was 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since 
>> has 
>> been 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the 
>> Bombadil 
>> with a 27.0. I just wish that they would issue the lugged seatpost in 
>> 26.8. 
>> I put a 27.2 lugged seatpost in the Bombadil by honing the ID if the 
>> seat 
>> tube with an automotive brake cylinder hone. I use the hone on all my 
>> frames anyway to smooth the interior of the tube so that the frames 
>> don't 
>> scratch the seatposts. In the case of the Bombadil It just took a couple 
>> of 
>> evenings and an extra set of stones to enlarge the diameter. The 
>> Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My 
>> custom uses

[RBW] Re: 26.8mm seat post diameter??

[Saturday Mark]

26.8 was just as common as 27.2 back in the 70's and 80's, prior to the now 
more . Riv has done 26.8 on a bunch of the step throughs since way back 
when. 

With that said, 26.8 is probably in short supply right now due to pandemic, 
but...

Nitto makes in crystal fellow and s83
Thomson makes 26.8
Kalloy Uno as well as their Crystal Fellow copy
+ a bunch of private label (Dimension, Sunlite, Origin8... etc) 

On Monday, October 18, 2021 at 8:01:38 PM UTC-6 Hugh Smitham wrote:

> Maybe someone can answer this, why in the heck did Rivendell start making 
> the seat tube inside diameter 26.8mm on the new bikes? I believe hearing 
> something about seat tube wall thickness. Don't get me wrong, I think the 
> new Geos make for a better ride, but it's way easier to find posts in 
> 27.2mm all day long. 
>
> Rivendell has the Nitto S83 in that diameter but it's a whopping 300 mm 
> length 50 mm more than I need and also a whopping $128 before tax and 
> shipping.
>
> Rant over n out.
>
> Hugh n LA
>
>
>

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Re: [RBW] Re: 26.8mm seat post diameter??

[Mackenzy Albright]

I've never found too much issue finding decent 26.8 used/bike co-oops. They 
seem to be pretty common on old touring bikes - eventually I upgraded my 
plain jane sugino to a simplex with a bit of searching. 

On Tuesday, October 19, 2021 at 10:24:06 AM UTC-6 Hugh Smitham wrote:

> I agree the lugs used (no matter the design) accept the same OS diameter 
> tubing but Rivendell went with thicker walled tubing. The question is why? 
> To me Grant not wanting to ream out the seat tube could effectively be 
> solved by choosing a thinner walled tubing. I think it's a structural 
> decision as I mentioned before. Laing, I wonder if by reaming out the 
> inside of the seat tube you are voiding the warranty? Probably NBD unless 
> you ride like Manny and need all the extra gussets and tube wall thickness. 
>
> David, basically my issue boils down to lack of availability which 
> obviously has been exacerbated by the pandemics supply chain disruption. 
> Yet still if I want a 27.2 post NBD.
>
> Eric and Laing, I agree with a lugged post in 26.8mm please!
>  
> ~Hugh
>
> “Life is like riding a bicycle. To keep your balance, you must keep 
> moving.” ― Albert Einstein
>
>
>
>
>
>
> On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:
>
>> Laing, your point is exactly my point.  If you use the same lugs you do 
>> not change the OD otherwise the lugs would not work.  If you want to use 
>> the same lugs and want a thicker tube, then it must get thicker on the 
>> inside, so the inner diameter must decrease with a thicker tube.  That's my 
>> understanding of why the seat post is now smaller in diameter.
>>
>> Toshi
>>
>>
>> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>>
>>> Lugs attach to the OD of the tube and have nothing to do with the ID of 
>>> the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs 
>>> as my 1st, but used the 26.8 seatpost.
>>> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I 
>>> am going to call this latest creation Conley's Crustendell Clementine 
>>> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till 
>>> December). I love a good alliteration. The black fork even matches the 
>>> black Clementine.
>>>
>>> Laing Conley
>>> Delray Beach FL
>>>
>>> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com 
>>> wrote:
>>>
 Hi Hugh, I had my little rant about this same issue back on Nov 24th 
 last year.  I assumed the change on the Hillbornes was made when they 
 changed the style of the seat lug.  The ends of the seat stays on my 2015 
 Hillborne (sidepull brakes) where they meet the seat lug are of a 
 different 
 style than the current models.  I assumed that was the reason, but I 
 notice 
 the Platypus and the Appaloosa use the same style as my Hillborne, but 
 both 
 those frame take 26.8mm seatposts.  Seems odd that the wall thickness used 
 in the seat tube of the Hillborne would change after 2015, but I guess it 
 did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.  
 Definitely limits ones options.

 On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com 
 wrote:

> I asked Will about this recently and he said something to the effect 
> that Grant didn't want to ream out as much from the seat tube hence 
> thicker 
> tube and thinner post. 
>
> I'm with Laing and would like that lugged seatpost in a 26.8, please! 
>
> On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:
>
>> Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago 
>> when they started using thicker tubing across the board. My 1st 
>> Rivendell 
>> (of 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 
>> and 
>> was 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since 
>> has 
>> been 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the 
>> Bombadil 
>> with a 27.0. I just wish that they would issue the lugged seatpost in 
>> 26.8. 
>> I put a 27.2 lugged seatpost in the Bombadil by honing the ID if the 
>> seat 
>> tube with an automotive brake cylinder hone. I use the hone on all my 
>> frames anyway to smooth the interior of the tube so that the frames 
>> don't 
>> scratch the seatposts. In the case of the Bombadil It just took a couple 
>> of 
>> evenings and an extra set of stones to enlarge the diameter. The 
>> Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My 
>> custom uses 31.8 OD tubes for the entire main triangle and uses a 29.0 
>> seatpost (1.4mm thick seat tube) - made for an interesting search - 
>> ended 
>> up with an very cool 30 year old NOS Campagnolo Icarus MTB seatpost. I 
>> grew 
>> up on French bicycles, so alternate component standards were always part 
>> of 
>> cycling to me. Much mo

Re: [RBW] Re: 26.8mm seat post diameter??

[Hugh Smitham]

I agree the lugs used (no matter the design) accept the same OS diameter
tubing but Rivendell went with thicker walled tubing. The question is why?
To me Grant not wanting to ream out the seat tube could effectively be
solved by choosing a thinner walled tubing. I think it's a structural
decision as I mentioned before. Laing, I wonder if by reaming out the
inside of the seat tube you are voiding the warranty? Probably NBD unless
you ride like Manny and need all the extra gussets and tube wall thickness.

David, basically my issue boils down to lack of availability which
obviously has been exacerbated by the pandemics supply chain disruption.
Yet still if I want a 27.2 post NBD.

Eric and Laing, I agree with a lugged post in 26.8mm please!

~Hugh

“Life is like riding a bicycle. To keep your balance, you must keep
moving.” ― Albert Einstein






On Tue, Oct 19, 2021 at 8:45 AM Toshi Takeuchi  wrote:

> Laing, your point is exactly my point.  If you use the same lugs you do
> not change the OD otherwise the lugs would not work.  If you want to use
> the same lugs and want a thicker tube, then it must get thicker on the
> inside, so the inner diameter must decrease with a thicker tube.  That's my
> understanding of why the seat post is now smaller in diameter.
>
> Toshi
>
>
> On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:
>
>> Lugs attach to the OD of the tube and have nothing to do with the ID of
>> the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs
>> as my 1st, but used the 26.8 seatpost.
>> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I am
>> going to call this latest creation Conley's Crustendell Clementine
>> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till
>> December). I love a good alliteration. The black fork even matches the
>> black Clementine.
>>
>> Laing Conley
>> Delray Beach FL
>>
>> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com
>> wrote:
>>
>>> Hi Hugh, I had my little rant about this same issue back on Nov 24th
>>> last year.  I assumed the change on the Hillbornes was made when they
>>> changed the style of the seat lug.  The ends of the seat stays on my 2015
>>> Hillborne (sidepull brakes) where they meet the seat lug are of a different
>>> style than the current models.  I assumed that was the reason, but I notice
>>> the Platypus and the Appaloosa use the same style as my Hillborne, but both
>>> those frame take 26.8mm seatposts.  Seems odd that the wall thickness used
>>> in the seat tube of the Hillborne would change after 2015, but I guess it
>>> did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.
>>> Definitely limits ones options.
>>>
>>> On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com
>>> wrote:
>>>
 I asked Will about this recently and he said something to the effect
 that Grant didn't want to ream out as much from the seat tube hence thicker
 tube and thinner post.

 I'm with Laing and would like that lugged seatpost in a 26.8, please!

 On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:

> Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago
> when they started using thicker tubing across the board. My 1st Rivendell
> (of 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 and
> was 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since has
> been 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the 
> Bombadil
> with a 27.0. I just wish that they would issue the lugged seatpost in 
> 26.8.
> I put a 27.2 lugged seatpost in the Bombadil by honing the ID if the seat
> tube with an automotive brake cylinder hone. I use the hone on all my
> frames anyway to smooth the interior of the tube so that the frames don't
> scratch the seatposts. In the case of the Bombadil It just took a couple 
> of
> evenings and an extra set of stones to enlarge the diameter. The
> Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My
> custom uses 31.8 OD tubes for the entire main triangle and uses a 29.0
> seatpost (1.4mm thick seat tube) - made for an interesting search - ended
> up with an very cool 30 year old NOS Campagnolo Icarus MTB seatpost. I 
> grew
> up on French bicycles, so alternate component standards were always part 
> of
> cycling to me. Much more pleasurable using Google than telephoning 
> multiple
> bike shops and hitch-hiking across the state in the seventies to get a 
> 26.4
> Campagnolo Record seatpost.
>
> Laing
> Delray Beach FL
>
> On Tuesday, October 19, 2021 at 5:57:29 AM UTC-4 Nick Payne wrote:
>
>> On Tuesday, 19 October 2021 at 7:37:04 pm UTC+11 Nick Payne wrote:
>>
>>> If you use a seattube with thicker 0.9mm walls (say for a touring
>>> bike designed to carry a load), then that will

Re: [RBW] Re: 26.8mm seat post diameter??

[Toshi Takeuchi]

Laing, your point is exactly my point.  If you use the same lugs you do not
change the OD otherwise the lugs would not work.  If you want to use the
same lugs and want a thicker tube, then it must get thicker on the inside,
so the inner diameter must decrease with a thicker tube.  That's my
understanding of why the seat post is now smaller in diameter.

Toshi


On Tue, Oct 19, 2021 at 7:54 AM lconley  wrote:

> Lugs attach to the OD of the tube and have nothing to do with the ID of
> the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs
> as my 1st, but used the 26.8 seatpost.
> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I am
> going to call this latest creation Conley's Crustendell Clementine
> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till
> December). I love a good alliteration. The black fork even matches the
> black Clementine.
>
> Laing Conley
> Delray Beach FL
>
> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com
> wrote:
>
>> Hi Hugh, I had my little rant about this same issue back on Nov 24th last
>> year.  I assumed the change on the Hillbornes was made when they changed
>> the style of the seat lug.  The ends of the seat stays on my 2015 Hillborne
>> (sidepull brakes) where they meet the seat lug are of a different style
>> than the current models.  I assumed that was the reason, but I notice the
>> Platypus and the Appaloosa use the same style as my Hillborne, but both
>> those frame take 26.8mm seatposts.  Seems odd that the wall thickness used
>> in the seat tube of the Hillborne would change after 2015, but I guess it
>> did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.
>> Definitely limits ones options.
>>
>> On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com wrote:
>>
>>> I asked Will about this recently and he said something to the effect
>>> that Grant didn't want to ream out as much from the seat tube hence thicker
>>> tube and thinner post.
>>>
>>> I'm with Laing and would like that lugged seatpost in a 26.8, please!
>>>
>>> On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:
>>>
 Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago
 when they started using thicker tubing across the board. My 1st Rivendell
 (of 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 and
 was 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since has
 been 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the Bombadil
 with a 27.0. I just wish that they would issue the lugged seatpost in 26.8.
 I put a 27.2 lugged seatpost in the Bombadil by honing the ID if the seat
 tube with an automotive brake cylinder hone. I use the hone on all my
 frames anyway to smooth the interior of the tube so that the frames don't
 scratch the seatposts. In the case of the Bombadil It just took a couple of
 evenings and an extra set of stones to enlarge the diameter. The
 Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My
 custom uses 31.8 OD tubes for the entire main triangle and uses a 29.0
 seatpost (1.4mm thick seat tube) - made for an interesting search - ended
 up with an very cool 30 year old NOS Campagnolo Icarus MTB seatpost. I grew
 up on French bicycles, so alternate component standards were always part of
 cycling to me. Much more pleasurable using Google than telephoning multiple
 bike shops and hitch-hiking across the state in the seventies to get a 26.4
 Campagnolo Record seatpost.

 Laing
 Delray Beach FL

 On Tuesday, October 19, 2021 at 5:57:29 AM UTC-4 Nick Payne wrote:

> On Tuesday, 19 October 2021 at 7:37:04 pm UTC+11 Nick Payne wrote:
>
>> If you use a seattube with thicker 0.9mm walls (say for a touring
>> bike designed to carry a load), then that will take a 28.6mm seatpost.
>>
> That should have been 26.8mm seatpost, not 28.6.
>
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> .
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[RBW] Re: 26.8mm seat post diameter??

[David Person]

You'll have to post pics, Laing.

On Tuesday, October 19, 2021 at 7:54:44 AM UTC-7 lconley wrote:

> Lugs attach to the OD of the tube and have nothing to do with the ID of 
> the tube. My second Sam Hillborne, in orange metalflake,  had the same lugs 
> as my 1st, but used the 26.8 seatpost.
> Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I am 
> going to call this latest creation Conley's Crustendell Clementine 
> Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till 
> December). I love a good alliteration. The black fork even matches the 
> black Clementine.
>
> Laing Conley
> Delray Beach FL
>
> On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com 
> wrote:
>
>> Hi Hugh, I had my little rant about this same issue back on Nov 24th last 
>> year.  I assumed the change on the Hillbornes was made when they changed 
>> the style of the seat lug.  The ends of the seat stays on my 2015 Hillborne 
>> (sidepull brakes) where they meet the seat lug are of a different style 
>> than the current models.  I assumed that was the reason, but I notice the 
>> Platypus and the Appaloosa use the same style as my Hillborne, but both 
>> those frame take 26.8mm seatposts.  Seems odd that the wall thickness used 
>> in the seat tube of the Hillborne would change after 2015, but I guess it 
>> did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.  
>> Definitely limits ones options.
>>
>> On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com wrote:
>>
>>> I asked Will about this recently and he said something to the effect 
>>> that Grant didn't want to ream out as much from the seat tube hence thicker 
>>> tube and thinner post. 
>>>
>>> I'm with Laing and would like that lugged seatpost in a 26.8, please! 
>>>
>>> On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:
>>>
 Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago 
 when they started using thicker tubing across the board. My 1st Rivendell 
 (of 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 and 
 was 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since has 
 been 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the 
 Bombadil 
 with a 27.0. I just wish that they would issue the lugged seatpost in 
 26.8. 
 I put a 27.2 lugged seatpost in the Bombadil by honing the ID if the seat 
 tube with an automotive brake cylinder hone. I use the hone on all my 
 frames anyway to smooth the interior of the tube so that the frames don't 
 scratch the seatposts. In the case of the Bombadil It just took a couple 
 of 
 evenings and an extra set of stones to enlarge the diameter. The 
 Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My 
 custom uses 31.8 OD tubes for the entire main triangle and uses a 29.0 
 seatpost (1.4mm thick seat tube) - made for an interesting search - ended 
 up with an very cool 30 year old NOS Campagnolo Icarus MTB seatpost. I 
 grew 
 up on French bicycles, so alternate component standards were always part 
 of 
 cycling to me. Much more pleasurable using Google than telephoning 
 multiple 
 bike shops and hitch-hiking across the state in the seventies to get a 
 26.4 
 Campagnolo Record seatpost.

 Laing
 Delray Beach FL

 On Tuesday, October 19, 2021 at 5:57:29 AM UTC-4 Nick Payne wrote:

> On Tuesday, 19 October 2021 at 7:37:04 pm UTC+11 Nick Payne wrote:
>
>> If you use a seattube with thicker 0.9mm walls (say for a touring 
>> bike designed to carry a load), then that will take a 28.6mm seatpost.
>>
> That should have been 26.8mm seatpost, not 28.6. 
>


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[RBW] Re: 26.8mm seat post diameter??

[lconley]

Lugs attach to the OD of the tube and have nothing to do with the ID of the 
tube. My second Sam Hillborne, in orange metalflake,  had the same lugs as 
my 1st, but used the 26.8 seatpost.
Gotta go - the UPS guy is at the door with my Crust Clydesdale fork. I am 
going to call this latest creation Conley's Crustendell Clementine 
Clydesdale Cargo Cycle (but sadly awaiting the Cliffhanger rims till 
December). I love a good alliteration. The black fork even matches the 
black Clementine.

Laing Conley
Delray Beach FL

On Tuesday, October 19, 2021 at 10:37:40 AM UTC-4 cycli...@gmail.com wrote:

> Hi Hugh, I had my little rant about this same issue back on Nov 24th last 
> year.  I assumed the change on the Hillbornes was made when they changed 
> the style of the seat lug.  The ends of the seat stays on my 2015 Hillborne 
> (sidepull brakes) where they meet the seat lug are of a different style 
> than the current models.  I assumed that was the reason, but I notice the 
> Platypus and the Appaloosa use the same style as my Hillborne, but both 
> those frame take 26.8mm seatposts.  Seems odd that the wall thickness used 
> in the seat tube of the Hillborne would change after 2015, but I guess it 
> did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.  
> Definitely limits ones options.
>
> On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com wrote:
>
>> I asked Will about this recently and he said something to the effect that 
>> Grant didn't want to ream out as much from the seat tube hence thicker tube 
>> and thinner post. 
>>
>> I'm with Laing and would like that lugged seatpost in a 26.8, please! 
>>
>> On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:
>>
>>> Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago 
>>> when they started using thicker tubing across the board. My 1st Rivendell 
>>> (of 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 and 
>>> was 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since has 
>>> been 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the Bombadil 
>>> with a 27.0. I just wish that they would issue the lugged seatpost in 26.8. 
>>> I put a 27.2 lugged seatpost in the Bombadil by honing the ID if the seat 
>>> tube with an automotive brake cylinder hone. I use the hone on all my 
>>> frames anyway to smooth the interior of the tube so that the frames don't 
>>> scratch the seatposts. In the case of the Bombadil It just took a couple of 
>>> evenings and an extra set of stones to enlarge the diameter. The 
>>> Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My 
>>> custom uses 31.8 OD tubes for the entire main triangle and uses a 29.0 
>>> seatpost (1.4mm thick seat tube) - made for an interesting search - ended 
>>> up with an very cool 30 year old NOS Campagnolo Icarus MTB seatpost. I grew 
>>> up on French bicycles, so alternate component standards were always part of 
>>> cycling to me. Much more pleasurable using Google than telephoning multiple 
>>> bike shops and hitch-hiking across the state in the seventies to get a 26.4 
>>> Campagnolo Record seatpost.
>>>
>>> Laing
>>> Delray Beach FL
>>>
>>> On Tuesday, October 19, 2021 at 5:57:29 AM UTC-4 Nick Payne wrote:
>>>
 On Tuesday, 19 October 2021 at 7:37:04 pm UTC+11 Nick Payne wrote:

> If you use a seattube with thicker 0.9mm walls (say for a touring bike 
> designed to carry a load), then that will take a 28.6mm seatpost.
>
 That should have been 26.8mm seatpost, not 28.6. 

>>>

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[RBW] Re: 26.8mm seat post diameter??

[David Person]

Hi Hugh, I had my little rant about this same issue back on Nov 24th last 
year.  I assumed the change on the Hillbornes was made when they changed 
the style of the seat lug.  The ends of the seat stays on my 2015 Hillborne 
(sidepull brakes) where they meet the seat lug are of a different style 
than the current models.  I assumed that was the reason, but I notice the 
Platypus and the Appaloosa use the same style as my Hillborne, but both 
those frame take 26.8mm seatposts.  Seems odd that the wall thickness used 
in the seat tube of the Hillborne would change after 2015, but I guess it 
did, hence the change to 26.8mm seatposts.  Anyhow, I'm with you on this.  
Definitely limits ones options.

On Tuesday, October 19, 2021 at 6:43:25 AM UTC-7 eric...@gmail.com wrote:

> I asked Will about this recently and he said something to the effect that 
> Grant didn't want to ream out as much from the seat tube hence thicker tube 
> and thinner post. 
>
> I'm with Laing and would like that lugged seatpost in a 26.8, please! 
>
> On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:
>
>> Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago when 
>> they started using thicker tubing across the board. My 1st Rivendell (of 
>> 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 and was 
>> 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since has been 
>> 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the Bombadil with 
>> a 27.0. I just wish that they would issue the lugged seatpost in 26.8. I 
>> put a 27.2 lugged seatpost in the Bombadil by honing the ID if the seat 
>> tube with an automotive brake cylinder hone. I use the hone on all my 
>> frames anyway to smooth the interior of the tube so that the frames don't 
>> scratch the seatposts. In the case of the Bombadil It just took a couple of 
>> evenings and an extra set of stones to enlarge the diameter. The 
>> Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My 
>> custom uses 31.8 OD tubes for the entire main triangle and uses a 29.0 
>> seatpost (1.4mm thick seat tube) - made for an interesting search - ended 
>> up with an very cool 30 year old NOS Campagnolo Icarus MTB seatpost. I grew 
>> up on French bicycles, so alternate component standards were always part of 
>> cycling to me. Much more pleasurable using Google than telephoning multiple 
>> bike shops and hitch-hiking across the state in the seventies to get a 26.4 
>> Campagnolo Record seatpost.
>>
>> Laing
>> Delray Beach FL
>>
>> On Tuesday, October 19, 2021 at 5:57:29 AM UTC-4 Nick Payne wrote:
>>
>>> On Tuesday, 19 October 2021 at 7:37:04 pm UTC+11 Nick Payne wrote:
>>>
 If you use a seattube with thicker 0.9mm walls (say for a touring bike 
 designed to carry a load), then that will take a 28.6mm seatpost.

>>> That should have been 26.8mm seatpost, not 28.6. 
>>>
>>

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[RBW] Re: 26.8mm seat post diameter??

[Eric Marth]

I asked Will about this recently and he said something to the effect that 
Grant didn't want to ream out as much from the seat tube hence thicker tube 
and thinner post. 

I'm with Laing and would like that lugged seatpost in a 26.8, please! 

On Tuesday, October 19, 2021 at 8:05:10 AM UTC-4 lconley wrote:

> Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago when 
> they started using thicker tubing across the board. My 1st Rivendell (of 
> 13) was a sidepull double top tube all-blue Sam Hillborne in 2011 and was 
> 27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since has been 
> 26.8 except the thin tubed Frank Jones Sr with a 27.2 and the Bombadil with 
> a 27.0. I just wish that they would issue the lugged seatpost in 26.8. I 
> put a 27.2 lugged seatpost in the Bombadil by honing the ID if the seat 
> tube with an automotive brake cylinder hone. I use the hone on all my 
> frames anyway to smooth the interior of the tube so that the frames don't 
> scratch the seatposts. In the case of the Bombadil It just took a couple of 
> evenings and an extra set of stones to enlarge the diameter. The 
> Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My 
> custom uses 31.8 OD tubes for the entire main triangle and uses a 29.0 
> seatpost (1.4mm thick seat tube) - made for an interesting search - ended 
> up with an very cool 30 year old NOS Campagnolo Icarus MTB seatpost. I grew 
> up on French bicycles, so alternate component standards were always part of 
> cycling to me. Much more pleasurable using Google than telephoning multiple 
> bike shops and hitch-hiking across the state in the seventies to get a 26.4 
> Campagnolo Record seatpost.
>
> Laing
> Delray Beach FL
>
> On Tuesday, October 19, 2021 at 5:57:29 AM UTC-4 Nick Payne wrote:
>
>> On Tuesday, 19 October 2021 at 7:37:04 pm UTC+11 Nick Payne wrote:
>>
>>> If you use a seattube with thicker 0.9mm walls (say for a touring bike 
>>> designed to carry a load), then that will take a 28.6mm seatpost.
>>>
>> That should have been 26.8mm seatpost, not 28.6. 
>>
>

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[RBW] Re: 26.8mm seat post diameter??

[lconley]

Rivendell switched over to mostly 26.8 seatposts maybe 5-6 years ago when 
they started using thicker tubing across the board. My 1st Rivendell (of 
13) was a sidepull double top tube all-blue Sam Hillborne in 2011 and was 
27.2, every other Rivendell with a 28.6 (1-1/8) OD seat tube since has been 
26.8 except the thin tubed Frank Jones Sr with a 27.2 and the Bombadil with 
a 27.0. I just wish that they would issue the lugged seatpost in 26.8. I 
put a 27.2 lugged seatpost in the Bombadil by honing the ID if the seat 
tube with an automotive brake cylinder hone. I use the hone on all my 
frames anyway to smooth the interior of the tube so that the frames don't 
scratch the seatposts. In the case of the Bombadil It just took a couple of 
evenings and an extra set of stones to enlarge the diameter. The 
Hubbuhubbuh and Clementine use even larger seat tubes and seat posts. My 
custom uses 31.8 OD tubes for the entire main triangle and uses a 29.0 
seatpost (1.4mm thick seat tube) - made for an interesting search - ended 
up with an very cool 30 year old NOS Campagnolo Icarus MTB seatpost. I grew 
up on French bicycles, so alternate component standards were always part of 
cycling to me. Much more pleasurable using Google than telephoning multiple 
bike shops and hitch-hiking across the state in the seventies to get a 26.4 
Campagnolo Record seatpost.

Laing
Delray Beach FL

On Tuesday, October 19, 2021 at 5:57:29 AM UTC-4 Nick Payne wrote:

> On Tuesday, 19 October 2021 at 7:37:04 pm UTC+11 Nick Payne wrote:
>
>> If you use a seattube with thicker 0.9mm walls (say for a touring bike 
>> designed to carry a load), then that will take a 28.6mm seatpost.
>>
> That should have been 26.8mm seatpost, not 28.6. 
>

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[RBW] Re: 26.8mm seat post diameter??

[Nick Payne]

On Tuesday, 19 October 2021 at 7:37:04 pm UTC+11 Nick Payne wrote:

> If you use a seattube with thicker 0.9mm walls (say for a touring bike 
> designed to carry a load), then that will take a 28.6mm seatpost.
>
That should have been 26.8mm seatpost, not 28.6. 

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[RBW] Re: 26.8mm seat post diameter??

[Nick Payne]

Lugs are made for 28.6mm (1-1/8") seat tubes. If the frame uses a seat tube 
with 0.7mm wall thickness at the top, then it will take a 27.2mm seatpost 
(28.6 - 2 * 0.7). If you use a seattube with thicker 0.9mm walls (say for a 
touring bike designed to carry a load), then that will take a 28.6mm 
seatpost. I have - in the past when racing bikes were made from steel - 
owned racing bikes that had even thinner tubing and took 27.4mm seatposts.

Nick

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Re: [RBW] Re: 26.8mm seat post diameter??

[Hugh Smitham]

Toshi,

That's my understanding as well, it has to be thicker tubing walls for
structural strength.

Perhaps the inconvenience of a different seat post diameter was the trade
off to avoid frame warranty claims. In this case the slight inconvenience
was shifted to the consumer. At the end of the day I suppose it's a small
price to pay for Riv to remain viable.

Hugh

On Mon, Oct 18, 2021, 11:04 PM Toshi Takeuchi  wrote:

> Yes my understanding is that if you want a thicker tube for strength, the
> outer diameter stays the same—I suppose so you can use the same lugs, but
> that means the inner diameter has to decrease, so you have a smaller seat
> tube diameter.
>
> Toshi in Oakland
>
> On Mon, Oct 18, 2021 at 8:35 PM Hugh Smitham 
> wrote:
>
>> Hey Fellas,
>>
>> Thanks for the reply's.
>>
>> Ron, honestly I know very little about bicycle frame manufacturing in
>> terms of the decisions that go into ordering a batch of F&F.'s. I could
>> certainly see creating a uniformity of parts and I'm sure Grant has some
>> rationalization for going with this diameter seat tube but it effectively
>> limited choices, virtually every seat post manufacturer makes a 27.2 mm
>> post.
>>
>> Karl, it does.
>>
>> Joe,  they do but I prefer a dual bolt post. They are stronger and allow
>> for better adjustment.
>>
>> A friend of mine on the list here uses a suspension post, When Rivendell
>> went to this seat post diameter it effectively limited him from buying any
>> of the new frames because nobody makes his preferred suspension post in
>> that diameter only in 27.2mm.
>>
>> Perhaps I'll call Grant and ask the man himself why he made that
>> decision. Somewhere I read that he wanted to create a thicker tube wall for
>> more strength? Maybe there were some failures and he was future proofing?
>> Maybe someone with better knowledge will chime in?
>>
>> Hugh n LA
>>
>> On Monday, October 18, 2021 at 8:00:52 PM UTC-7 Joe Bernard wrote:
>>
>>> I don't know the answer but I do know Riv also carries the S65
>>> single-bolt in 250mm for $84.
>>>
>>> Joe Bernard
>>>
>>> On Monday, October 18, 2021 at 7:01:38 PM UTC-7 Hugh Smitham wrote:
>>>
 Maybe someone can answer this, why in the heck did Rivendell start
 making the seat tube inside diameter 26.8mm on the new bikes? I believe
 hearing something about seat tube wall thickness. Don't get me wrong, I
 think the new Geos make for a better ride, but it's way easier to find
 posts in 27.2mm all day long.

 Rivendell has the Nitto S83 in that diameter but it's a whopping 300 mm
 length 50 mm more than I need and also a whopping $128 before tax and
 shipping.

 Rant over n out.

 Hugh n LA


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>> .
>>
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Re: [RBW] Re: 26.8mm seat post diameter??

[Toshi Takeuchi]

Yes my understanding is that if you want a thicker tube for strength, the
outer diameter stays the same—I suppose so you can use the same lugs, but
that means the inner diameter has to decrease, so you have a smaller seat
tube diameter.

Toshi in Oakland

On Mon, Oct 18, 2021 at 8:35 PM Hugh Smitham  wrote:

> Hey Fellas,
>
> Thanks for the reply's.
>
> Ron, honestly I know very little about bicycle frame manufacturing in
> terms of the decisions that go into ordering a batch of F&F.'s. I could
> certainly see creating a uniformity of parts and I'm sure Grant has some
> rationalization for going with this diameter seat tube but it effectively
> limited choices, virtually every seat post manufacturer makes a 27.2 mm
> post.
>
> Karl, it does.
>
> Joe,  they do but I prefer a dual bolt post. They are stronger and allow
> for better adjustment.
>
> A friend of mine on the list here uses a suspension post, When Rivendell
> went to this seat post diameter it effectively limited him from buying any
> of the new frames because nobody makes his preferred suspension post in
> that diameter only in 27.2mm.
>
> Perhaps I'll call Grant and ask the man himself why he made that decision.
> Somewhere I read that he wanted to create a thicker tube wall for more
> strength? Maybe there were some failures and he was future proofing? Maybe
> someone with better knowledge will chime in?
>
> Hugh n LA
>
> On Monday, October 18, 2021 at 8:00:52 PM UTC-7 Joe Bernard wrote:
>
>> I don't know the answer but I do know Riv also carries the S65
>> single-bolt in 250mm for $84.
>>
>> Joe Bernard
>>
>> On Monday, October 18, 2021 at 7:01:38 PM UTC-7 Hugh Smitham wrote:
>>
>>> Maybe someone can answer this, why in the heck did Rivendell start
>>> making the seat tube inside diameter 26.8mm on the new bikes? I believe
>>> hearing something about seat tube wall thickness. Don't get me wrong, I
>>> think the new Geos make for a better ride, but it's way easier to find
>>> posts in 27.2mm all day long.
>>>
>>> Rivendell has the Nitto S83 in that diameter but it's a whopping 300 mm
>>> length 50 mm more than I need and also a whopping $128 before tax and
>>> shipping.
>>>
>>> Rant over n out.
>>>
>>> Hugh n LA
>>>
>>>
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> .
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Re: [RBW] Re: 26.8mm seat post diameter??

[Ron Frazelle]

Yeah, when I finally made the decision to actually buy a Rivendell instead
of just lusting after one...I was actually surprised that the frames aren't
spec'd with 27.2 seat tubes...its always been kinda the unofficial size for
steel frames.

It's Grant though, so 🤘

On Mon, Oct 18, 2021, 8:35 PM Hugh Smitham  wrote:

> Hey Fellas,
>
> Thanks for the reply's.
>
> Ron, honestly I know very little about bicycle frame manufacturing in
> terms of the decisions that go into ordering a batch of F&F.'s. I could
> certainly see creating a uniformity of parts and I'm sure Grant has some
> rationalization for going with this diameter seat tube but it effectively
> limited choices, virtually every seat post manufacturer makes a 27.2 mm
> post.
>
> Karl, it does.
>
> Joe,  they do but I prefer a dual bolt post. They are stronger and allow
> for better adjustment.
>
> A friend of mine on the list here uses a suspension post, When Rivendell
> went to this seat post diameter it effectively limited him from buying any
> of the new frames because nobody makes his preferred suspension post in
> that diameter only in 27.2mm.
>
> Perhaps I'll call Grant and ask the man himself why he made that decision.
> Somewhere I read that he wanted to create a thicker tube wall for more
> strength? Maybe there were some failures and he was future proofing? Maybe
> someone with better knowledge will chime in?
>
> Hugh n LA
>
> On Monday, October 18, 2021 at 8:00:52 PM UTC-7 Joe Bernard wrote:
>
>> I don't know the answer but I do know Riv also carries the S65
>> single-bolt in 250mm for $84.
>>
>> Joe Bernard
>>
>> On Monday, October 18, 2021 at 7:01:38 PM UTC-7 Hugh Smitham wrote:
>>
>>> Maybe someone can answer this, why in the heck did Rivendell start
>>> making the seat tube inside diameter 26.8mm on the new bikes? I believe
>>> hearing something about seat tube wall thickness. Don't get me wrong, I
>>> think the new Geos make for a better ride, but it's way easier to find
>>> posts in 27.2mm all day long.
>>>
>>> Rivendell has the Nitto S83 in that diameter but it's a whopping 300 mm
>>> length 50 mm more than I need and also a whopping $128 before tax and
>>> shipping.
>>>
>>> Rant over n out.
>>>
>>> Hugh n LA
>>>
>>>
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[RBW] Re: 26.8mm seat post diameter??

[Hugh Smitham]

Hey Fellas,

Thanks for the reply's.

Ron, honestly I know very little about bicycle frame manufacturing in terms 
of the decisions that go into ordering a batch of F&F.'s. I could certainly 
see creating a uniformity of parts and I'm sure Grant has some 
rationalization for going with this diameter seat tube but it effectively 
limited choices, virtually every seat post manufacturer makes a 27.2 mm 
post.

Karl, it does.

Joe,  they do but I prefer a dual bolt post. They are stronger and allow 
for better adjustment.

A friend of mine on the list here uses a suspension post, When Rivendell 
went to this seat post diameter it effectively limited him from buying any 
of the new frames because nobody makes his preferred suspension post in 
that diameter only in 27.2mm.

Perhaps I'll call Grant and ask the man himself why he made that decision. 
Somewhere I read that he wanted to create a thicker tube wall for more 
strength? Maybe there were some failures and he was future proofing? Maybe 
someone with better knowledge will chime in?

Hugh n LA

On Monday, October 18, 2021 at 8:00:52 PM UTC-7 Joe Bernard wrote:

> I don't know the answer but I do know Riv also carries the S65 single-bolt 
> in 250mm for $84. 
>
> Joe Bernard
>
> On Monday, October 18, 2021 at 7:01:38 PM UTC-7 Hugh Smitham wrote:
>
>> Maybe someone can answer this, why in the heck did Rivendell start making 
>> the seat tube inside diameter 26.8mm on the new bikes? I believe hearing 
>> something about seat tube wall thickness. Don't get me wrong, I think the 
>> new Geos make for a better ride, but it's way easier to find posts in 
>> 27.2mm all day long. 
>>
>> Rivendell has the Nitto S83 in that diameter but it's a whopping 300 mm 
>> length 50 mm more than I need and also a whopping $128 before tax and 
>> shipping.
>>
>> Rant over n out.
>>
>> Hugh n LA
>>
>>
>>

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[RBW] Re: 26.8mm seat post diameter??

[Joe Bernard]

I don't know the answer but I do know Riv also carries the S65 single-bolt 
in 250mm for $84. 

Joe Bernard

On Monday, October 18, 2021 at 7:01:38 PM UTC-7 Hugh Smitham wrote:

> Maybe someone can answer this, why in the heck did Rivendell start making 
> the seat tube inside diameter 26.8mm on the new bikes? I believe hearing 
> something about seat tube wall thickness. Don't get me wrong, I think the 
> new Geos make for a better ride, but it's way easier to find posts in 
> 27.2mm all day long. 
>
> Rivendell has the Nitto S83 in that diameter but it's a whopping 300 mm 
> length 50 mm more than I need and also a whopping $128 before tax and 
> shipping.
>
> Rant over n out.
>
> Hugh n LA
>
>
>

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