Feature:1. Chromium molybdenum steel material, high rigidity and high strength, wear resistance is higher than peers.2. Made of highquality chromiummolybdenum steel (cover nickelchromium treatment), corrosion resistance, good heat resistance.3. Easy to maintain, seldom rubbed internally, don't worry about longterm use of frictional heat, which will affect its life.4. Smoothly rotation without noise, highprecision internal thread, to ensure close connection with the bicycle hub, stable operation.5. Climbing is more laborsaving than a single crank, compatible for SRAM, shifting is more sensitive.Specification:Item Type: 8 Speed FreewheelMaterial: ChromiumMolybdenum Steel (Cover NickelChromium Treatment)Color: SilverWeight: Approx. 412.0g/14.5ozQuantity: 1PcsSpecification: 11-36TSpeed: 8 SpeedCompatible for SRAMNumber of Teeth: 11-13-16-20-24-28-32-36TAdaptation: Road BikeProduct Details:Lead chain slot + mud hole design:Guide chain slot design makes shifting more sensitiveThe mud drain hole is easier to clean and not easy to drop the chainSprocket: accurate chain guide effect, allowing smoothly riding and accurate shifting.Package List:1 x 8 Speed FreewheelNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.