JCMOTO Transmission Reduction Gear Box Gearbox For 47cc 49c 2-Stroke Pocket Mini Bike Brand new 14 Tooth T8F transmission reduction gear box assembly The sprocket is compatible for T8F chain only Suitable for most 33cc 36cc 43cc 47cc 49cc pocket bike, mini bike, scooter, chopper, ATV Fits brand of TaoTao, Buyang, Coolsport, Kazuma, Sunl, Roketa, AIM-EX