Glixal ATKS-033 729-17.7-30 Reinforced Racing CVT Drive Belt for GY6 49cc 50cc 139QMB Scooter Moped Long-Case Engine Material: Fiber+Rubber (longer durability and high-performance) Length: 729mm Width: 17.7mm Teeth Angel: 30 degree Racing Drive Belt for 4 stroke 49CC 50CC GY6 139QMB 1P39QMB Long case engine Scooter, ATV, Go Kart, Moped Continuously Variable Transmission CVT Drive Belt Please Compare to Your Old Belt. Make Sure It Matches Yours And Is Correct Before Ordering.