SRAM's carbon fiber crankset is light weight and strong enough to handle epic all-mountain rides.
Unidirectional carbon fiber arm mated to a 4-arm spider with insert-molded aluminum pedal and spindle-interface reinforcements
Optimized Q-factor with a 49.5mm chainline and a drive-side integrated GXP (24mm) bottom bracket spindle for maximized stiffness
GXP (Giga X Pipe) cartridge bearing bottom bracket set sold separately: available in 68/73mm threaded or BB92 Press-Fit (either BlackBox ceramic or Team steel bearings)