... 2) GY6 engine belt, 152QMI, 157QMJ beltmotorcycle belts, scooter belt, dirt bike belts, kevlar scooter belts1) model:669-18-28,743-20 ... -800 CC belt available6. Belt for GY6 152QMI, 157QMJ, 125CC, 150CC, 250CC7.669-18-28 for 139QMB engine 50CC scooter belt ...