1、Universal Compatibility: Designed specifically for XD freehub bodies, this mountain bike flywheel seamlessly integrates with a wide range of mountain and road bikes, making it a versatile choice for cyclists looking to upgrade their drivetrain. 2、Lightweight Hollow Design: The bike flywheel features a hollow design that effectively reduces weight without sacrificing strength. This thoughtful engineering strikes an excellent balance between durability and weight, making it easier for riders to handle their bikes and enhancing overall riding performance. 3、Slick And Quiet Shifting: The closely spaced teeth on each cog of the bike sprocket ensure that the chain remains in close proximity to the teeth. This design facilitates slick and quiet gear shifts, resulting in a more enjoyable riding experience by minimizing noise and maximizing efficiency during transitions. 4、Excellent Materials: Constructed from a combination of aluminum alloy and steel, this bike cassette sprocket offers excellent durability and performance. The combination of materials ensures that the cassette withstands the rigors of cycling while providing the strength necessary for demanding rides. 5、Easy Installation And Usage: The bike flywheel sprocket is designed for straightforward installation, making it accessible for both professional mechanics and handcraft enthusiasts. Its user friendly design allows for an easy setup, so cyclists can spend more time riding and less time on maintenance. Item Type: Bike Cassette Flywheel Material: Aluminum Alloy, Steel 1 x Bike Cassette Flywheel