STARTER GEAR BUSHING GOES BETWEEN BEN-DIX AND BELT COVER FOR 50CC QMB139 MOTORS SEE #13 ON DRAWING OUTER DIAMETER: 12mm LENGTH: 9mm INNER DIAMETER : 8mm FITS MOST CHINESE SCOOTERS WITH 50cc, 60cc, 80cc, AND 100cc QMB139 MOTORS FITS MOST MODES OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATOR AND MANY OTHERS