SRAM S900 BB30 Bottom Bracket
SRAM S900 BB30 Bottom Bracket, Features of the SRAM S900 BB30 / PF30 / BBright 170mm 46-36 Crankset BB Shell Width (mm): 68 mm , 73 mm , 79 mm BB/Frame Interface: BB30 , BBright Direct Fit Bottom Bracket Shell I. D.: 42 Spindle Interface Type: BB30/PF30 Defined Color: Black