I recently purchased a second hand frame. I transferred over the majority of my components from my Stumpjumper, though I bought a new bottom bracket, as per the previous owner’s size (113 x 73) My cranks are the Shimano FC-540, with the “custom, Octalink spline” The previous owner had a Race Face Signature XS bottom bracket, and a Race Face crankset.
I realized that the combo that I have installed leaves me with my cranks too far inboard. For example, the innermost parts of my small ring actually touch the frame’s bottom bracket shells!
I did a search, and some point out that since Shimano’s splines are deeper, a wider bottom bracket is required. Is their logic correct? If so, what would be a good starting point for moving up for me? Any other pointers?
Thanks a bunch!
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Thread: Shimano crank splines “deeper”?
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