4 Stroke GY6 50cc Engine Motor Short Case Auto Clutch with CVT Transmission for 50cc Dual Rear Shock Scooters. 50cc GY6 Dual Rear Shock Scooters. Compatible Models: Boom 50cc Engine Scooters, model BD50QT-9A.
GY6 50cc Engine Shortcase Motor is ideal for retrofitted dual rear shock scooters where a lightweight and reliable power source is needed.