Motorcycle Transmission Gear Reduction Box Clutch For T8F Chain 43cc 47cc 49cc 2 Stroke Pocket Mini Bike Scooter ATV Go Kart Description: -- -- Material: Aluminum alloy -- Color: As picture -- Quantity: 1 set -- Size: As the picture shows Features: Wide CompatibilityThis transmission gear box and centrifugal clutch assembly fits 43cc 47cc 49cc 50cc 2-stroke T8F pocket bike scooter ATV go kart mini bike dirt bike pit bike SpecificationsReduction Ratio: 3 to 1 chain reducer. Hole distance is about 2.8"/71mm. Please confirm size of your original part. This is 116mm, not 91mm, and the size is marked in the picture Fits Various Sports VehiclesThere are five different front drive sprockets available for five different sizes, specially made for a T8F chain. You can choose and replace sprockets according to the torque and speed you need Crafted For DurabilityMade using quality materials and manufactured in line with industry standards. The sprocket gear underwent heat treatment to enhance resilience against wear and tear Note: Please carefully check whether your engine matches this accessory. Please allow 1-2mm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Package included: 1 x transmission gear box 1 x clutch 5 x drive sprockets(T8F 11T 13T 14T 17T 20T )