Join Date: Aug 2005
Location: Cowtown, AB
Bikes: Titus El Guapo, Misfit diSSent, Cervelo Soloist Carbon, Wabi Lightning, et al.
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Originally Posted by jonbth
I bought a 2006 Trek Elite 9.8 frame and need to find out the bottom bracket size. I know the shell length is 68. I tried a 113 wide spindle and the large chainring is almost touching the frame (chainstay). I was wondering if 118 is a common mountain bike size. I searched a few posts and it seemed to indicate the 118 was a road bike length spindle.
Almost touching - how much space do you actually have, and what crank/chainring are you using? The OCLV frames are pretty stiff, so they can handle closer tolerances because the frame won't deflect as much. The best thing to do is contact Trek directly and ask what the recommended spindle size is for your chainring/crank. Since pretty much everyone has gone to the external bearing cranks, there doesn't seem to be a BB spindle to measure the way there used to be.
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