Material: Fiber+Rubber (longer durability and high-performance) Length: 669mm Width: 18mm Teeth Angel: 30 degree Racing Drive Belt for 4 stroke 49CC 50CC GY6 139QMB 1P39QMB Short 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. 1.New Products with High Quality 2.Replacement for stock 669-18-30 Drive Belt 3.Fits Most of Chinese Made Scooters and ATV. Such as JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO,JCL,Coolsport,Kazuma