What bottom brackets fit the SRM?
The SRM has been designed with interchangeable crank arms. If you upgrade or change your bottom bracket or wish to change crank length, this is easily achieved with the purchase of new crank arms only. Cranks arms are available from 165mm – 180mm in 2.5mm steps. The cranks are for: • 102mm Campagnolo bottom bracket set (BBS). • 103 Shimano BBS, new Shimano model (round axle). • 113mm Shimano XTR MTB axles available.