Features1ALUMINUM ALLOY MATERIAL: The bicycle cassette is made of aluminum alloy, which is not easy to corrode and is durable. It is not easy to rust and can be used for a long time, providing stable and reliable performance for the bike. 2SMOOTH ROTATION, NO NOISE: The bicycle cassette is accurately machined to ensure smooth rotation and no noise generation when riding. This provides a more comfortable and quieter riding experience. 3HIGH ACCURACY INTERNAL THREAD: The bicycle cassette has a high accuracy internal thread design to ensure a tight connection between the cassette and the bicycle hub. This increases transmission efficiency and improves riding stability and safety. 4SKELETON DESIGN: Bicycle cassette with skeleton design can effectively reduce the weight and riding burden. Skeleton design can reduce the weight of the cassette while maintaining sufficient strength, providing a lighter feeling for riding. 5EASY TO INSTALL AND USE: The design of the bike cassette makes it easy to install and use. It can be quickly installed on the bike and is easy to adjust and operate.SpecificationItem Item Type: Bicycle CassetteMaterial: AluminumWeight: Approx. 715g / 25.2ozPackage List1 x Cassette3 xRing