* Expand your choice of cranks for use in BB86/BB92/BB91/BB71-41/BB107 frames.* Dual-row flanged bearings to run 30mm spindle cranks (FSA BB386EVO, Rotor 3d+, RaceFace Next SL, e.thirteen) cranks.* Directly fits frames with 41mm ID smooth bore bottom bracket shells* Requires 30mm spindle cranksets with spindle lengths longer than 104mm* Includes bearings, spacers, and seals