Description A set of replacement bearings for Bafang BBS01/BBS02 Systems .   Kit includes: 2x Main Shaft Thrust Bearings 2x Main Shaft Needle Roller Bearings 1x Final Drive Gear Bearing 1x Clutch Cover Plate Bearing 1x Pinion Body Bearing 1x Pinion Plate Bearing 1x Axle Oil Seal Not included are the Rotor bearings – the rotor end bearing comes preinstalled on the rotor shaft, the rotor body bearing is difficult to remove and seldom needs replacing.