ITEM NAME:Push Bike Gear+Clutch Shaft+Drive Sprocket Fit For 66cc 80cc Motorized Bicycle Clutch Shaft & Drive Sprocket & Push Bike Gear Fit for 66/80cc Motorized Bike Engine SPECIFICATIONS.(Suitable for: 66cc 80cc 2 Stroke Engine Motorized Bicycle. Clutch Shaft & Drive Sprocket & Push Bike Gear Fit for 66/80cc Motorized Bike Engine. 2) Perfect match for the original one. 1) Follow the original factory specifications.