Features1Durable Material: The sprocket and flywheel are made of high strength steel and the grips are made rubber. The repair parts are durable and wear proof and will not break. 2Strong Structure: The sprocket made of metal provides maximum power transmission and long life. Forging process is adopted, and the sprocket is not corroded and deformed. 3Accurate Processing: Accurate machining is adopted to ensure the ultimate retention, prolong the working life, and reduce friction and noise. 4Lightweight While Strength: The bike sprocket is hollowed out in a large area, greatly reducing the weight while maintaining the strength. 5Wide Compatibility: Our bike conversion set is compatible with most mountain bikes, road bikes, scooters, ATV, motorcycle, four wheeled off road vehicles on the market.SpecificationItem Type: Road Bike Conversion SetMaterial: Steel, rubberWeight: Approx. 781g/27.55ozSprocket Inner Diameter: 54mm/2.13inPackage List1 xSprocket1 xFlywheel1 xAdapterConnector1 Pair x Twist Throttle Grips