- COMPATIBILITY: Designed specifically for type wheel systems, this product allows for quick and hassle-free removal or installation using a wheel tool. Inner diameter is 34mm, ensuring a secure fit. - CHAIN COMPATIBILITY: Works seamlessly with 1/2"x1/8" chains and features 18 teeth for efficient operation. - DURABILITY: Constructed from hardened steel, this component is built to withstand stress and prolonged use. Weighing only 179g (0.39lbs), it combines strength with lightweight design. - SMOOTH PERFORMANCE: Equipped with high-quality ball bearings, it ensures smooth rolling for optimal performance during use. Use Scenarios: - Ideal for cyclists looking to replace or upgrade their wheel components, enhancing the overall bike performance and ride quality. - Great for maintenance and repairs in bike shops, providing a reliable solution for technicians and enthusiasts alike. - Suitable for various types of bicycles, making it a versatile addition to any cyclist's toolkit. This product delivers durability, compatibility, and performance, ensuring a superior cycling experience.