Re: [RBW] Trigger shifters on swept-back bars - Jones or others

2017-11-03 Thread Tim Gavin
Melanie-

Sorry for the tardy response, but here are some pictures of the current
build (Jones bars with M590 shifters) on my '88 Schwinn KOM-10.

https://photos.app.goo.gl/uziENhoNRlEvl6ws1
Hopefully that link works.

Look at the most recent photos (scroll to the bottom) to show the Jones bar
cockpit.  I mounted the bars with a ~20 degree nose-up tilt (on a
threadless stem adapter and uptilt stem).  I mounted the shifters and brake
levers about ~90 degrees down from the plane of the bar, or about ~70
degrees from the horizon.

This seems to get the thumb shifters in a comfortable position.


Other stuff about the build:
The bike is a 1988 Schwinn KOM-10, a high-end lugged MTB frameset made at
the new plant in Greenville MS under Richard Schwinn.  It was made as the
'86-87 Paramountain, and raced to NORBA championships by Ned Overend.  For
'88 they renamed it since they couldn't keep making the Paramountain with
Ned's name on it after he left for Specialized.
Its tubeset is Tange Prestige MTB, same tubing as the Stumpjumper and other
top MTB of the mid-80s, and the lugs were cast by Schwinn's Paramount group.
It has weird angles (which were a radical new design for NORBA
competition); 71 degree headset and 74 degree seat tube angles, a long top
tube (24"/61cm vs 22"/56cm seat tube) and low stack (due to flat top tube
angle) makes for twitchy front end handling.
It also has the signature oddball feature of the mid-80s MTB:  U-brakes on
the chainstays behind the crank!  Thankfully, mine are the Deore XT M730s,
which were regarded as the best of the breed.  They work well with new
Kool-stop pads, but they're still a pain to set up.

The build was complete Shimano Deore XT M730, including headset, BB, hubs,
pedals, etc.  For that very first production run, it was 6-speed indexed,
on a Uniglide hub.  I still have the wheels; that hub is a weird one.

I bought the bike about 4 years ago for only $75!  It was used but not
trashed, except for the huge scratches in the paint from some cruel storage
hooks.  The paint damage and eventual rust is what urged me to blast off
the awesome bomb pop paint job and I had it powder coated clear with a
little sparkle.
I've kept much of the original equipment (brakes, headset, crankset
(Biopace 48/38/26), but I've replaced other components that I've worn out
(RD, BB) or replaced with upgrades.  It was a fun and sporty ride with
Nitto B135 drop bars, but now that its fast gravel duties have been taken
over by my plastic (CF) 'cross bike, the upright bar build makes more sense.

I changed the wheelset to a modern Deore XT T780 set with a dynamo front
hub, and the RD to a 9-speed Shimano.  The M590 9-speed shifters work great
with both the modern rear and vintage front (original crank and FD).
I mounted a B&M Cyo premium headlight to the threaded eyelet on the side of
my Nitto M12 front rack using a Sheldon's nut.
I mounted a B&M Topline tail light to a Tubus Logo Evo rear rack.  I ran
the tail light cable along the down tube, left chain stay, and up the rack
leg, and I glued it on with Shoe Goo (holding for 2 years now).
The front bag is a Sackville small Trunksack, which fits perfectly on the
M12 but doesn't hold much.  The frame bag is a custom from RuthWorks in SF;
I bought it from a listmember who had it made for his identical
Paramountain frame, but later sold the frame without the bag.  It's a
custom fit (which is great, because the geometry of this bike is weird and
a modern frame bag would fit funny) and fits a fair amount of gear.  I add
some Ortlieb rear panniers for cargo.
By using bottle cage adapters and side-entry cages, I can still fit two
full bottles under the frame bag.
The tires are Schwalbe Thunder Burt liteskin in 26 x 2.1.  The low-profile
knobs (and light construction) make them very fast for MTB tires, yet they
still have enough tread for dry dirt trails.  The fenders are SKS P65
longboards.


This bike is a big klutz (38 lbs and twitchy front end).  But I'm a big
klutz too so it fits.  I've done a lot on it (single track, fast gravel and
dirt rides, touring, commuting, winter riding, just riding downtown) but it
has gotten elbowed out of the common rotation by my other lighter and more
specialized bikes.  Any more, I ride it when I want to take a leisurely
ride down to the library or brewery.


Cheers,
Tim Gavin
Cedar Rapids, IA

On Mon, Oct 23, 2017 at 5:02 PM, Melanie  wrote:

> Thanks, for the responses. Tim - I’d love to see your pictures.  I’m a
> novice at doing my own builds and I seem to have created a losing
> combination of Choco Norm and Shimano M590.  Back to the drawing board.
>
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[RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-24 Thread iamkeith
Couple more thoughts, Melanie:  I'd forgotten about a very short-lived 
experiment i did with trigger shifters on an albatross bar.  Ironically, on the 
same bike i now wish to try boscos on now, i posted pics in this thread a 
couple of years ago:

https://groups.google.com/forum/m/#!topic/rbw-owners-bunch/acdHkcHzz8c

Seems i didn't hate the shiters as much as the bars.  

Other thought was that, if the concern is simply with the amount of room left 
for grips, you could just get some control tech terminators.  (1" extenders).  
Since the bosco was intended to have bar end shifters, it probably needs them 
anyway.

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[RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-24 Thread iamkeith
Clayton, how did you get the clamps past the bend on the choco bar?  Could you 
share pictures?

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[RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-24 Thread iamkeith
Melanie, do those shifters detach from the mounting clamp?  If so, I'm 
wondering if something like this would work, on the straight section near the 
stem clamp:

https://paulcomp.com/shop/components/sram-shifter-adaptor/

These are 31.8 and possibly sram specific, but i can't believe someone hasn't 
come up with an elegant hack solution for this.  I'm hoping you find a way, 
because id like to use a similar combination on a specific bike.

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[RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-23 Thread Joe Bernard
That's a nice shifter, Melanie, but I agree it's a bad fit on Chocos..I tried a 
similar shifter on a Choco-Moose. The only way it sorta worked was to move up 
on the curve, which then felt far away and awkward for me. I think they work 
better on bars that don't sweep straight back. 

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[RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-23 Thread Melanie
Thanks, for the responses. Tim - I’d love to see your pictures.  I’m a novice 
at doing my own builds and I seem to have created a losing combination of Choco 
Norm and Shimano M590.  Back to the drawing board. 

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[RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-23 Thread Joe Bernard
I don't have triggers on my Jones Loop, but I've used them (Shimano RapidFire) 
on a bunch of bars with a similar sweepback. I think they work well this way, 
the front trigger you pull back with your index finger is actually a little 
easier to reach at this angle.

I've used them on Albatross, too, but that was less successful.  

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Re: [RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-23 Thread Jay Connolly
There a ton of room on the Jones bars and on the Ospreys. I use Shimano 9 speed 
on the Joe with Jones. They work great. I got a deal too good to pass up on a 
1x crank, and someone gave me a brand new 11-42  cassette for free, so my Clem 
L will be a 1x11. It strikes me as a little absurd, somehow, and a little 
anti-Riv, but I’m looking forward to it. 

Jay

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Re: [RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-23 Thread Tim Gavin
I'm using 3x9 Shimano MTB trigger shifters with the Jones Loop 710 bars on
my '88 Schwinn KOM.  There's plenty of real estate on the ends of the 710s
to fit brake levers, shifters, and grips.
Narrower bars may not have enough real estate; I have a set of early Jones
Cut Loop bars in 560 mm which don't have enough space there.

The angle of the under-grip shift levers isn't as good as it would be on a
flat (un-swept) MTB bar, but it works fine for Just Riding Around and
occasional trails.

I could take a picture later if you'd like to see the setup (quill adapter
to threadless stem, FYI).

On Mon, Oct 23, 2017 at 10:00 AM, A CT Cyclist  wrote:

> Funny you should ask, I've been thinking about the same thing. I'm looking
> at the Sun race trigger shifters for 10 speed road because they look clean
> and would be compatible with my shimano road derailleur. Has anyone used
> trigger shifters from them. If I was building the bike up from scratch I
> think I would go with Dram triggers.
>
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[RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-23 Thread A CT Cyclist
Funny you should ask, I've been thinking about the same thing. I'm looking at 
the Sun race trigger shifters for 10 speed road because they look clean and 
would be compatible with my shimano road derailleur. Has anyone used trigger 
shifters from them. If I was building the bike up from scratch I think I would 
go with Dram triggers.

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[RBW] Trigger shifters on swept-back bars - Jones or others

2017-10-23 Thread Melanie
Has anyone found a trigger shifter that works well with swept-back bars?  I may 
have to install bar ends or go the oddly mounted thumb shifter route. But 
triggers near the brake levers would be ideal. Thanks. 
Melanie 

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