[RBW] Re: Converting a triple to a low/low

On Wednesday, July 3, 2019 at 4:03:28 PM UTC-7, Nick Payne wrote: > > On Monday, 1 July 2019 09:12:36 UTC+10, Benz, Sunnyvale, CA wrote: >> >> >> How ever did you get those ex-chainrings to be so…refined? Your >> workmanship must be master craftsman level if you used only a hacksaw and >> file.

[RBW] Re: Converting a triple to a low/low

Roman spoke of those MTB derailleurs but mentioned needing a much wider BB. I am going to roll with the new BB and CX70 I am getting from Joe as I think that will work out perfect however if it's not optimal I may look at one of those new fangled MTB FDs. -- You received this message because

[RBW] Re: Converting a triple to a low/low

On Thursday, 4 July 2019 13:56:57 UTC+10, Joe Bernard wrote: > > Cool you win. I didn't know about modern 2x MTB derailers, I didn't even > know that was a thing. Yeah, they're designed for pretty small chainrings. The XT M786 that I have on several bikes (intended for 10s) is specified by Shi

[RBW] Re: Converting a triple to a low/low

Cool you win. I didn't know about modern 2x MTB derailers, I didn't even know that was a thing. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-

[RBW] Re: Converting a triple to a low/low

Cool you win. I don't know anything about modern 2x front derailers, I didn't even know that was a thing. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to r

[RBW] Re: Converting a triple to a low/low

On Thursday, 4 July 2019 11:43:53 UTC+10, Joe Bernard wrote: > > Your chainguard looks sized similar to the 42t it replaced. No, they're not close to the same size - the 42t chainring is more than 30mm greater diameter than the chainguard - 174mm vs 142mm. Here's the crank with a 42t chainrin

[RBW] Re: Converting a triple to a low/low

Your chainguard looks sized similar to the 42t it replaced. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com.

[RBW] Re: Converting a triple to a low/low

On Wednesday, 3 July 2019 08:37:12 UTC+10, Joe Bernard wrote: > > The problem you're trying to work around is there are no FDs specifically > designed to shift a low/low crank with a small chain guard. Normally what > you see is a triple FD in its normal triple position over a guard the size >

[RBW] Re: Converting a triple to a low/low

On Monday, 1 July 2019 09:12:36 UTC+10, Benz, Sunnyvale, CA wrote: > > > How ever did you get those ex-chainrings to be so…refined? Your > workmanship must be master craftsman level if you used only a hacksaw and > file. > I was able to initially get the ring pretty close to exactly round with

[RBW] Re: Converting a triple to a low/low

FWIW, I have an old bike with Ultegra triple converted to low/low just by adjusting the FD stop and replacing the big ring with one of these bashguards to act as chain guard: https://bbgbashguard.com/ The bashguard was around $14, seemed worth it compared to trying to cut and file off the teeth

Re: [RBW] Re: Converting a triple to a low/low

Yes a triple FD will work, no it won't be pretty set up high above that small chainguard. The CX70 and BB I'm sending should cover his bases, and might even work without swapping BBs. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To uns

Re: [RBW] Re: Converting a triple to a low/low

I had meant to say "So even though there are some current mtn doubles designed for really small rings like 36-22 On 7/3/19, David Johnston wrote: > I'm not sure if Johnny the OP has a fully built up bike yet or how > many parts he has to start with. If he has any front derailleur, > particul

Re: [RBW] Re: Converting a triple to a low/low

+1. My experience with the LX fd on my Fargo when converting from triple to double. On Wed, Jul 3, 2019 at 2:25 AM Garth wrote: > The FD doesn't need to be altered from the position it is *already > working with all 3 rings. *Taking off the big ring and just using the 2 > small rings(no guard,

[RBW] Re: Converting a triple to a low/low

I’m running my Atlantis with a 42/34/19 triple and a Suntour Cyclone fd. I can’t mount the fd as low as I would like but it handles all the shifts well. I do use a chain catcher on the inside. I’ve only dropped the chain once to the outside since I’ve been running this but shouldn’t think tha

Re: [RBW] Re: Converting a triple to a low/low

I'm not sure if Johnny the OP has a fully built up bike yet or how many parts he has to start with. If he has any front derailleur, particularity one that was originally designed for a 46-36-24 crankset, I would suggest trying that first. I have heard the Mtn derailleurs produced in the last few y

[RBW] Re: Converting a triple to a low/low

The FD doesn't need to be altered from the position it is *already working with all 3 rings. *Taking off the big ring and just using the 2 small rings(no guard, single ring chainring bolts) doesn't change that, as obviously it's no different than simply never shifting into the big ring in the

[RBW] Re: Converting a triple to a low/low

My go to derailleur for middle inner double is the XT fd-m737 90's era Microdrive Front that was designed for a 44-32-22 rings. The LX from the era is also good. I have not tried a CX70, but I would try your current spindle first. I would also consider putting a 1-2 mm BB spacer on the drive si

[RBW] Re: Converting a triple to a low/low

I believe I have a 107 bb, wide low double with chain guard (from rbw) and a cx70 fd on my bombadil. Works fine. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an emai

[RBW] Re: Converting a triple to a low/low

I would not assume the fully built Clems come with a 110 spindle. Frankly I think that's an odd spec which seems to come on all the MIT framesets, and makes a heckuva lot more sense on Roadini than the touring/townie bikes. The problem you're trying to work around is there are no FDs specifical

[RBW] Re: Converting a triple to a low/low

Had a long conversation with Roman today. He claims that the conversion is simple (as we discussed) but that the front derailluer can be an issue. So most FD's have a longish cage and setting it that low will cause it to hit the chainstay. BUT Rivendell sells a 34/24 as their Low/Low and that

[RBW] Re: Converting a triple to a low/low

On Sunday, June 30, 2019 at 1:57:41 PM UTC-7, Nick Payne wrote: > > I've done that on several cranks. I usually hacksaw / file the teeth off > an old chainring to use as the chainguard. Here's a Sugino XD crank setup > that way: > > >

[RBW] Re: Converting a triple to a low/low

Thanks for the info Ana! I shot you a message. On Sunday, June 30, 2019 at 2:55:27 PM UTC-4, Ana Candela wrote: > > Johnny, > > I recently did this. I had a 170 double with chain guard. I bought a 165 > triple, and I just swapped the cranks between them. Works great! > > I think you could just

[RBW] Re: Converting a triple to a low/low

On Sunday, 30 June 2019 00:18:19 UTC+10, Johnny Alien wrote: > > So I posted a thread looking for a crankset because I didn't want to spend > a ton and didn't feel like piecing one together. The New Albion wide/low > has different gearing than the old Sugino one and what I really would > prefer

[RBW] Re: Converting a triple to a low/low

I've used a Silver guard on a Sugino with a 36t ring. Works great, looks great. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...

[RBW] Re: Converting a triple to a low/low

I've removed teeth from a chainring without power tools. I clamped it in a vice and used a pair of channel lock pliers to bend each tooth until it snapped off. It was easier than I thought it would be (with an aluminum chainring, I doubt it would work for steel). After removing the teeth I used

[RBW] Re: Converting a triple to a low/low

Liz asked about how to go about removing teeth. I would say that is a topic for another thread. I use a bandsaw with a metal blade and clean up with a belt sander. With power tools it's easy, but without I would recommend buying one from Riv, BBG bashguard, Salsa or one of the euro dealers. -Da

[RBW] Re: Converting a triple to a low/low

Yeah it will be a standard 9 spread in the back. I have an Atlus rear I was planning on using. I have used a Wide/Low on a Sam Hillborne for awhile and it covered everything and that was a 40 largest. My plan for this was largely easy trail usage. Some pavement for errands and such. There are

[RBW] Re: Converting a triple to a low/low

Johnny, What else are you going to do to the drivetrain? What rear cluster are you planning on using, 9 speed and 11-28? Is this a utility bike where you will just coast downhills, and will it see mostly paved use? I have found 36-11 to be a bit limiting on the pavement and I am not a strong

[RBW] Re: Converting a triple to a low/low

The problem is that the guard is for 44t coverage so it will be way larger than I need and result in a larger looking crank which I am trying to avoid. The New Albion that Rivendell sells comes in a wide low but the large ring is 40 and I assume the guard is around 42 or 44 like the Sugino. I

[RBW] Re: Converting a triple to a low/low

* 'old' Sugino cranks...not 'only.' Phone autocorrect. On Saturday, June 29, 2019 at 8:46:18 PM UTC-4, Eric Karnes wrote: > > Ben's Cycle sells (what I assume is) the chain guard that was on the XD2 > wide low that Riv used to sell: > > > https://www.benscycle.com/sugino-chainring-chainguard-110b

[RBW] Re: Converting a triple to a low/low

Ben's Cycle sells (what I assume is) the chain guard that was on the XD2 wide low that Riv used to sell: https://www.benscycle.com/sugino-chainring-chainguard-110bcd-44t-silver/chainring_guard_sugino__434-435_434-435/product Probably worth shooting them an email for a photo before shelling out $

[RBW] Re: Converting a triple to a low/low

On Saturday, June 29, 2019 at 7:20:01 PM UTC-4, Johnny Alien wrote: > > If I am understanding things correctly I could also get a Sugino triple, > remove the outer ring and install a Silver chainguard. > Spa Cycles sells a double with a chainguard, looks Sugino ish. https://www.spacycles.co.u

[RBW] Re: Converting a triple to a low/low

If I am understanding things correctly I could also get a Sugino triple, remove the outer ring and install a Silver chainguard. It should mount properly to the Sugino and they have a small guard designed for a 34-36T outer ring. Then I would not need to buy new bolts and it would only be about

[RBW] Re: Converting a triple to a low/low

I think that is exactly what u am going to do. I wasn't sure if I needed to replace the bolts so that is helpful. Thanks! -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send

[RBW] Re: Converting a triple to a low/low

You could also remove the large ring and don't use anything in that position. Replace the double chainring bolts with single chainring variety for the 36t and so you have just the 24/36 alone. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch

[RBW] Re: Converting a triple to a low/low

So, how does one go about cutting down the teeth on a chainring? I practically never use my large chainring; on another bike I replaced it with a chainguard, but would be happy with another option! Thanks in advance, Liz Washington, DC On Saturday, June 29, 2019 at 1:01:44 PM UTC-4, Dave Joh

[RBW] Re: Converting a triple to a low/low

For what Roman did you would need shorter "track" style chain ring bolts. I googled $22 for Sugino at Ben's or $8 shipped for generic on ebay. You might have to experiment with F derailleurs for optimal placement. Maybe a shorter cage double road derailleur or an old Micro Drive front would wor

[RBW] Re: Converting a triple to a low/low

Yes I agree that is the simplest method! The main reason I would remove it is because I don't use it and prefer the look of a crankset with small rings. It's a visual thing for me. On Saturday, June 29, 2019 at 12:38:19 PM UTC-4, Deacon Patrick wrote: > > It's even simpler: don't ride the outer

[RBW] Re: Converting a triple to a low/low

It's even simpler: don't ride the outer ring, consider it a rockguard with teeth, and a "holy smokes this is a wonderful 10 mile gentle descent with a tailwind that never happens" gear. Grin. But yes, nothing fancy. My QB has a single front chainring on its stock triple, leaving the two inside s

[RBW] Re: Converting a triple to a low/low

Thanks Dave. I shot you a message. Yes removing the large ring would leave 36/26. It looks like Roman at Riv did the exact thing I am talking about. I am just not sure if it is as simple as removing a ring or if there is more I would have to do. https://process.filepicker.io/AevbsiaW2SbOjYpq8

[RBW] Re: Converting a triple to a low/low

What size rings are you talking about? 36t-26t? I've done it and didn't even replace or move the front derailleur down at all, which gives a gap that does look a little weird. I did cut off the teeth of a 49t larger outer ring to act as a guard, and eventually replaced the 36t with a 39t for a