Facing an 83mm BB shell down to 73mm
- Thread starter jasontan
- Start date
one of the versions of the xt cranks actually has a long enough spindle that you can use it on an 83mm bb without modifying the frame. I wanna say it was the 3 ring version or something. a few people on the site have done it, hopefully one of them will chime in.
I haven't tried it, but a lot of bb shells are internally relieved, so there wouldn't be metal available to chase in new threads.
I ran xt cranks on my round tube turner, but I bought the 771 touring cranks with the longer spindle and did the modification to the cranks as Per the instructions I found on a website, can't remember which one, but I'm sure someone here knows.
Only complication was with the chainguide. I was limited to the gamut guide, but I'm sure if I spent more time I could've made a better guide work.
I ran xt cranks on my round tube turner, but I bought the 771 touring cranks with the longer spindle and did the modification to the cranks as Per the instructions I found on a website, can't remember which one, but I'm sure someone here knows.
Only complication was with the chainguide. I was limited to the gamut guide, but I'm sure if I spent more time I could've made a better guide work.
Shimano made a 3 ring 73mm XT Crank for touring bikes which would work with 83mm shells. If you do a search there should be info regarding how to setup these cranks with 83mm BB bikes.
I'm not sure if Shimano still makes this particular version of the XT crank since I believe it was a revision or two before the current model which is now out.
*edit*
Linky Here
Looks like they are still making these cranks. Not sure how hard they are to get, but you will notice via the PDF for them on the website that these cranks have a longer spindle and spacers which the normal XT does not have.
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^^^that's it. Thanks
Aww...
I wanted to see what would happen.
I wanted to see what would happen.
With the narrowed Q-factor of the XT's, I'm curious how much clearance there is with the chainstay on a Sunday. Any ideas?
Ruin a perfectly good frame to save 70 grams (XT vs Descendant) seems dumb to me.
If you're doing it for the cool factor then run a lighter set of cranks like XTR or SixC
If you're doing it for the cool factor then run a lighter set of cranks like XTR or SixC
Just get Saints. 180 grams won't kill you.
I don't know what the fuss is, it's an easy mod. All you have to do is find the correct style of XT cranks and you're all good.
XT look naff compaired with saint...