669-18-30 Drive belt replacement for 4 stroke GY6 49CC 50CC 1P39QMB 139QMB, such as engine Scooter, Go Kart, Moped, ATV. Brand new aftermarket Drive Belt. Diameter: 669 mm. Width: 18 mm. Pitch: 30 degrees. Compatible with GY6 49CC 50CC ROKETA TAOTAO VESPA JONWAY SCOOTERS, MOPED, GO KART & ATV Package includes: 5 x Drive Belts Please check your correct replacement parts before purchase, thank you 669 18 30 CVT Drive Belt 5-Pack Belt Material: Fiber Rubber Replaces for 49CC 50CC GY6 Roketa Taotao Vespa Jonway Scooter Racing Drive Belt for 4 stroke 49CC 50CC GY6 139QMB 1P39QMB Long case engine Scooter, ATV, Go Kart, Moped??such as??Roketa Taotao Baja Vespa Jonway ??