[Specification&Material]Length: 729mm Width: 18mm Teeth Angel: 30 degree made of reinforced rubber (longer durability and high-performance, quality guarantee 12 month). [Compatible for ]Famous Brands Continuously Variable Transmission Drive belt for 4 stroke 49CC 50CC GY6 139QMB long-case engine scooter, ATV, go kart, moped. [Fit Model]GY6 49cc 50cc 60cc 80cc 139QMB ROKETA JMSTAR TAOTAO JONWAY Baja Tank SUNL, TANK, PEACE,Scooter Moped ATV Go Kart. [Quality Guarantee]Please feel free to contact us, if you have quality or using problem, we will reply in 24 working days, customer 100% satisfied shopping experience will be our first goal. [Package Include]You will be received 729-18-30 or 729-17.7-30, it is the same size, only printed difference,if you minded it please don’t order it. Product Description 1.New Products with High Quality from chinese brand factory 2.Replacement GY6 50cc CVT drive belt for 139QMB Engine 3.This Parts Fit Most of Chinese Made Scooters and ATVs Fitment: