BB question

[Gary In Va]

I trying to install a 105 crankset on my cross frame. The recommended bb for this crankset is a
68/109. I installed one that size and the big ring comes into contact with the chainstay. This is a
splined bb/crank. I see that the road splined bbs are all about this size. Will the XTR bb fit this
crankset so I could get maybe a 116 spacing?

Gary in VA

 

[Sheldon Brown]

Gary in VA wrote:
> I trying to install a 105 crankset on my cross frame. The recommended bb for this crankset is a
> 68/109. I installed one that size and the big ring comes into contact with the chainstay. This is
> a splined bb/crank. I see that the road splined bbs are all about this size. Will the XTR bb fit
> this crankset so I could get maybe a 116 spacing?

Yes, that will work. Something cheaper that might also work would be to put a spacer washer or two
under the right side bottom bracket retaining ring.

Sheldon "There Are Ways..." Brown +--------------------------------------------+
| Silence is not always a sign of wisdom | but babbling is ever a mark of folly. | -- Benjamin
| Franklin |
+--------------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone
617-244-9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find parts shipped Worldwide
http://captainbike.com http://sheldonbrown.com

 

[Qui Si Parla Ca]

gary-<< I trying to install a 105 crankset on my cross frame. The recommended bb for this crankset
is a 68/109. I installed one that size and the big ring comes into contact with the chainstay.

Not uncommon-try a XTR of 113 or 116mm or a 118mm triple BB-

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
(303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene"