I'm trying to put different sized cranks on my bike. I first tried to source the same SRAM power spline 3 piece cranks in a shorter size, but they're so old I can't find them anywhere. Can't find anything else that will fit the stupid power spline BB either.

I have this FSA 2 piece crank which is the right size, but doesn't fit with the power spline BB, so what BB do I buy for the FSA crank (with the bronze spindle)?

I'm fairly certain I have an english, threaded BB shell. It's 68mm wide.

The BB86/30 Compatible label on the spindle is throwing me off. What is the 86 referring to?

Will the SRAM DUB fit? If so, do I choose the 68/73mm, or the 68mm road wide?

Please help I'm going to have an aneurysm.

Thanks

by dudson4

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3 Comments

  1. Thats a Ø30 mm crankspindle.

    With BSA the cups get quite thin so SRAM invented DUB which is Ø29 mm

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