Feature:1. Built to Last: Made with premium stainless steel, aluminum alloy, this 6 speed cassette is robust, rust resistant, good heat resistance, and promises high durability for long term use.2. High Performance Design: Our flywheel's high performance design delivers faster cycling speeds. Its smooth turning action ensures minimal noise, making your ride more enjoyable.3. Multi Use: Easy to operate and low noise. It is suitable for mountain bikes, road bikes and other common bicycles on the market. It a versatile addition to your bike and can be easily installed, making the transformation process simple and easy.4. Easy to Install: This cassette characterized by smooth rotation without much noise. High accuracy internal thread ensures close connection with bicycle hub.5. Upgrade Component: An excellent choice for upgrading your bike. This 6 speed bicycle cassette flywheel enhances performance for smoother riding, making it a must have for cycling enthusiasts.Specification:Item Type: 6 Speed CassetteMaterial: Stainless Steel, Aluminum Alloy.Package List:4 x 6 Speed Cassette Components