- Durable Material: Made from high-quality aluminum alloy, this hub washer is designed for long-lasting durability and practicality. It withstands regular use, ensuring reliable performance on every ride. - Wide Compatibility: Specifically engineered for standard Japanese cassette hub freehubs, it seamlessly fits 8, 9, 10, and 11-speed cassette flywheels. This compatibility makes it an ideal choice for a variety of bike models. - Precise Height Adjustment: This essential accessory allows for accurate adjustments of the flywheel height during installation. Achieve optimal performance and smooth operation, enhancing your cycling experience. - Enhanced Performance: The hub washer is crucial for maintaining the proper function of the cassette hub freehub. It facilitates smooth gear changes, which improves overall bike performance. Use Scenarios: 1. Bike Maintenance: When servicing your bike, use the hub washer to ensure the flywheel is installed at the correct height for optimal gear shifting. 2. Upgrading Components: If you're upgrading to a new cassette, this washer ensures compatibility and performance, making your new gear work seamlessly with your existing setup. 3. Custom Builds: For custom bike builds, the hub washer is essential to achieve the right fit and function, ensuring that all components work together effectively. Invest in this hub washer for a reliable, efficient cycling experience that enhances your bike's performance and longevity.