Bb road bsa blk coated

BSA is another way to set threads in English; It comes from the British Standard Cycle. English threading on road bikes means 68mm wide, 34mm internal diameter casing with reverse threading on the drive side. It is the most common threaded standard used today. This kit works with 24mm diameter thru-axle cranks, found on Shimano, FSA, Rotor, among others. Choose between two bearings for the cups. Standard bearings have low resistance thanks to hardened steel races and our ceramic balls. Coated bearings have those same balls installed in hardened steel coated races for longer life and less rolling resistance.