1、SMOOTH ROTATION, NO NOISE: The bicycle cassette features steady rotation and no noise. This provides a smoother riding experience and allows you to enjoy a more enjoyable ride. 2、HIGH ACCURACY INTERNAL THREAD: The bicycle cassette is designed with a high accuracy internal thread to ensure a tight connection with the bicycle hub. 3、HOLLOW DESIGN: Bicycle cassette adopts hollow design, which not only reduces the riding burden, but also achieves a good balance between strength and weight. 4、DURABLE: The bicycle cassette is made of high strength steel, which has durable properties. This material is not easy to rust and can withstand long time use and various environments. 5、EASY TO INSTALL AND USE: Bicycle cassette is very simple and easy to install. You can quickly finish the installation and use it easily and quickly. Item Type: Bicycle Cassette Material: Steel Weight: Approx. 335g / 11.8oz 1 x Bicycle Cassette 1 x Accessory