9 Speed Cassette 12‑40T Bicycle Cassette Aluminum Alloy Bike Freewheel Smooth Rotation Noiseless

Feature: 1. Aluminum Alloy Material: 9 speed cassette is made of aluminum alloy, which is suitable for various harsh riding environments. Anticorrosion, good heat resistance, and long service life. 2. Smooth Rotation and Noiseless: Bicycle freewheel provides smooth rotation and operates quietly, enhancing the overall riding experience. 3. Accurate Internal Thread: The high accuracy internal thread ensures a tight connection with the bicycle hub, improving stability and power transfer. 4. Hollow Design: The hollow design helps to reduce weight and alleviate the burden during cycling. It achieves a good balance between strength and weight, making it easy to install and use. An ideal choice for reducing the weight of your bicycle. 5. Easy Installation: Bike cassette is designed for convenient installation, making it easy for users to replace or upgrade their existing bike freewheel. Specification: Item Type: 9 Speed Cassette Material: Aluminum Alloy Weight: Approx. 560g 19.8oz. Package List: 1 x 9 Speed Cassette3 x Sprockets