i want to get sram XX BB30 crank for my cannndale Rush carbon SL 08 onlye i donno if i need get 156 or 164 Q BB of Rush is 73mm
ty for help
I'm pretty sure that if your BB is 73mm wide, it's not a BB30 shell. I think you need the GXP version of the XX cranks.
I've got no idea on the Q factor though.
its is BB30