The Bike Headset Expander is a must-have accessory for bicycle enthusiasts. Made of high-quality aluminum alloy, this tool features CNC-knurled edges for a safe and secure fit. Its versatile design is compatible with forks ranging from 22-25.4mm, extending the lifespan of your bicycle headset by providing a secure and adjustable fit. Additionally, it serves as a handy bicycle maintenance tool, making it a valuable addition to your toolkit. Simply insert it into the fork, then push it into the headset to expand its diameter. The 28.6mm expansion allows for a perfect fit for both carbon and metal forks, ensuring a comfortable and secure ride. Invest in this reliable and durable accessory for hassle-free maintenance and optimal performance.