Bike Forums - View Single Post - Trek Bottom Bracket Install help or "Did I put this in backwards??"

02-27-09 | 06:30 AM

#6

fender1

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Joined: Jan 2006

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From: Berwyn PA

Bikes: I hate bikes!

Quote:

Originally Posted by unworthy1

Charles pegged it: it's a JIS taper on a ISO crank and there's not enough contact due to the mismatch...the crank arm is too far outboard. All you need is to find a BB or spindle with the ISO taper and using your original length of 117 or 116 should get you in pretty close.

Thanks for the replies. Ok, so who has an ISO tapered catridge bb they might want to trade???? 117mm?? Anyone?

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