Aluminum Alloy MaterialThe bicycle sprocket is made of high-quality aluminum alloy material, which is light in weight, high in strength, durable, and has a long service life, which can ensure maximum durability. Exquisite CraftsmanshipThe bicycle sprocket looks stylish, cool to install on the bicycle, and easy to install, without complicated steps or procedures, and is a perfect substitute for bicycle repair. Narrow and Wide Tooth DesignThe narrow and wide tooth design of the bicycle sprocket greatly increases the contact area with the chain, and can easily pass through bumpy roads. Strong CompatibilityThe bicycle sprocket has high axial strength and strong compatibility. It is suitable for mountain bikes/road bikes and has a personalized design. You can freely choose the configuration that suits your riding. Colour:54T Features: Made of high quality aluminum alloy, light weight, high strength and durable. Fashionable appearance, cool to mount on your bicycle. High axial strength, strong compatibility, suitable for mountain bike/road bike. 5 options for you to choose. Easy to install. A perfect replacement for bike repair. Specification: Condition: 100% Brand New Material: Aluminium alloy Color: black BCD: 130mm/5.1inch Options: 54T Option Diameter Weight 52T 224mm/8.8inch 92g Package list: 1 x Bike Chain Wheel "