Features1Fine Processing: The bicycle freewheel has been finely quenched, tempered and hardened, and treated with 3 layers of nickel plating, which is wear resistant and rust proof. 2Smoother Operation: The thread of this bicycle flywheel is clear and firm. The flywheel and the hub are closely combined, and the operation is smoother. 3Accurate Teeth Form: The positioning teeth form has high accuracy, which makes the speed change smoother, and has been punched and weight reduced and has strong compatibility. 4Noiseless: The 8 speed bicycle freewheel rotates steadily and noiseless, so the flywheel will bring you a better experience when riding your mountain bike. 5Long Service Life: This bike threaded flywheel is made of steel, with the characteristics of high strength and durability, and can be used for a long time.SpecificationItem Type: Bicycle freewheelMaterial:Steel Weight: Approx. 470g/16.6ozColor: SilverProduct Style: 8 speed 13-28T threaded flywheel silverApplicable: for 8/2 x 8/24 speed flywheelNumber of Teeth: 13, 14, 15, 17, 19, 21, 24, 28 teethPackage List1 xBicycleFreewheel