Expand your choice of cranks for use in BB86/BB92/BB91/BB71-41/BB107 frames. Replace your bottom bracket with these flanged bearings and run 30mm spindle cranks (FSA BB386EVO, Rotor 3d+, RaceFace Next SL, E*thirteen) cranks in your frame. These bearings fit directly in frames with 41mm ID smooth bore bottom bracket shells. You must use 30mm spindle cranksets with spindle lengths longer than 104mm. Features: Complete Bottom bracket (includes both bearings and seals, spacers) Compatible with 30mm diameter cranks with a spindle length of at least 104mm Dual-row flanged bearings press directly into 41mm ID smooth bore bottom bracket shells Fits bottom bracket shell widths from 86.5mm to 107mm Base: Enduro ABEC 3 sealed bearings Specifications: Frame Interface: BB86, BB92, BB91, BB71-41, BB107/104 Spindle Interface: 30mm (BB386EVO, BB30 longer than 104mm) Bottom Bracket Shell ID: PF41 Shell Width: 86.5mm - 107mm Material: Enduro ABEC-3 Bearings Color: Silver Weight: 196g