V-Belt CVT Drive Belt 669 18 30 fits GY6 50cc Scooter Moped ATV 669-18-30 CVT drive-belt for 49/50cc 4-stroke scooters commonly found with the QMB139 engine Oil and heat resistant BELT SIZE: 669 mm Length x 18 mm Width x 30 mm teeth spacing Oil and heat resistant Please check pictures/dimensions before the purchase or contact us for details All MEGA MOTOR Parts are tested rigorously