Drive Sprocket Washer for Rotax Max Kart Engines. This washer is ideal for securing proper rotation of the drive sprocket and clutch assembly for sprockets 12-15 tooth in size.
Each washer is 10mm in ID, 22mm in OD, and 1.5mm thick. This washer fits onto the crankshaft just outside of the needle bearing and drive sprocket, prior to the retention nut, and allows for a bearing-type rotation for the drive sprocket.
NOTE: This washer is NOT the washer you want to use if you are running the 11- tooth drive sprocket! This washer is used for drive sprockets 12-15T in size only!