Motorcycle Drive Belt made of excellent quality rubber material, sturdy and durable Easy to install, professional installation is recommended for According to factory specifications, a great replacement belt for the old or worn one Oil and heat resistant, high mileage and reliable performance Fit for most 50cc-80cc scooters with short case motor with 10inch rear wheel, reference for GY6, QMB/QMA 139, 4 stroke engines Product Description Features: Made of excellent quality rubber material, sturdy and durable. Oil and heat resistant, high mileage and reliable performance. for According to factory specifications, a great replacement belt for the old or worn one. Easy to install, professional installation is recommended. Fit for most 50cc-80cc scooters with short case motor with 10inch rear wheel, reference for GY6, QMB/QMA 139, 4 stroke engines. Specifications: Material: Rubber Color: Black Item Number: 669-18-30 Length: 669mm/26.3″ Width