Tom, I asked RBW what length bb was used on my 2013 Sam. I was told that although they came to RBW with 107's, they discovered that the XT front derailleur works better with a 113 and that's probably what is in there and that's what I should put on if I need a new bb sometime. Maybe that would help the situation? I have sugino XD2 with XT derailer on my Sam.
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