Here's a comparable reference chart for Shimano branded BB's:
http://web.archive.org/web/20101022002409/http://blog.harriscyclery.com/relative-chainline-bottom-brackets/
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glad it worked. I used a 121mm SKF with a 2.5mm spacer for a cyclotouriste
triple (Boulder recommended 126mm). I much prefer the narrower spindle,
especially on the left side - otherwise, it looks like the left side crank
is in the next county. My chain line came out perfect. I had one
So it sounds like:
Get a new bottom bracket with a longer spindle, which would move both crank
arms out and increase Q factor.
Get some spacers for drive side. This would move the existing spindle inward on
the non-drive side and outward on the drive side. Q factor stays the same, and
you'd be
Edwin,
I have a Shimano Deore 122.5mm bottom bracket (looseball, comes with
everything though) you can have for the price of shipping.
David
Chicago
On Sunday, November 8, 2015 at 8:51:49 AM UTC-6, Edwin W wrote:
>
> So it sounds like:
> Get a new bottom bracket with a longer spindle, which
asymmetric looks a lot better than symmetric
On Sunday, November 8, 2015 at 8:51:49 AM UTC-6, Edwin W wrote:
>
> So it sounds like:
> Get a new bottom bracket with a longer spindle, which would move both
> crank arms out and increase Q factor.
> Get some spacers for drive side. This would move
Thanks for help and suggestions. I swapped out the 110 for a 122.5 and the LBS
didn't charge me much for it. Stem coming tomorrow, then on to levers, shifter
and cables.
Thanks for all of your help,
Edwin
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You'd probably need to start with just measuring how many mm you need to
clear that stay, then multiply by 2 and add that to 110 (which is what they
ship with). In standard BBs, it looks like Riv stocks up to 115 on their
site, but it looks Shimano makes theirs in up to 127mm?
On Saturday,
The difficult part here is that, if you can't fully install/tighten the
drive side crank without it hitting the chainstay, then it will be harder
to tell how much longer of a spindle you need. I keep a box of worn-out
bottom brackets, in different lengths, around for this purpose - always
Following up on what Toby said (which is 100% correct).
One free reference for what you need with a Sugino GP is the 1992
Bridgestone catalog. The 1992 RB-T came with a triple Sugino GP crankset
and a 120mm BB spindle. So, if you are running a triple, I'd start with
120mm at least. If you
Thanks everyone! Very helpful.
Right now I am running a 36t middle and outer chainguard, thinking 1x8. I
will see what my LBS has and get their opinion, as well. They might do a
bit of a swap, since it is a new BB.
I guess I have to think about what is the likelihood of adding an inner
Yes, running a 1x with the middle ring only, your chainline should be the
same as if you were running a triple, so 120 is a good starting point.
On Saturday, November 7, 2015 at 10:06:54 AM UTC-8, Edwin W wrote:
>
> Thanks everyone! Very helpful.
>
> Right now I am running a 36t middle and
as Patrick mentioned on the parallel thread, how about adding a spacer to
the BB?
On Saturday, November 7, 2015 at 4:33:52 PM UTC-6, Garth wrote:
>
>
>
>
> For a cartridge BB you'll likely require the 122.5 or 127.5 size. I
> recommend the Tange as it has no lips on the cups allowing for
For a cartridge BB you'll likely require the 122.5 or 127.5 size. I
recommend the Tange as it has no lips on the cups allowing for fine tuning
with spacers. FWIW in reference to Bill's somment about the AT , I used a
127 Shimano UN-72 with it and it was perfect . This Tange chart
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