Features1Durable Steel: This bike sprocket flywheel set is made of steel material, which is strong and durable, has a long service life. 2Package Includes: The steel bike sprocket modified parts set includes 1 sprocket, 1 connector and 1 flywheel. It is a practical accessory for refitting electric bikes. 3Easy Installation: This electric bike sprocket connector freewheel set is convenient to install. No complicated tools required, easy to use. 4Applications: It is suitable for scooters, twisting car modification, bike modification into electric bike, and various machine modification. 5Fine Workmanship : The original standard can be directly replaced with the old or damaged one. After accuracy processing, it can be used safely and securely.SpecificationItem Type: Bike Sprocket Flywheel SetMaterial: SteelGross Weight: 450g / 15.o9ozPackage List1 x Sprocket1 x Flywheel1 x Connector