Easily Adjustable Includes a range of thickness spacers for precise width adjustment, ensuring a fit for any biketrainer thru axle skewer every time. Easy Install Remove your bike's existing thruaxle and it with this adapter. It adds a stylish look while enhancing wear resistance. Start indoor training quickly with no special tools or expertise required. Durable Performance Built with quality alloy, this cycle trainer skewer delivers strong durability and long life. It resists wear, maintains shape, and stays rust for enduring performance. Wide Compatibility Designed for rear axles from 135 mm to 148 mm in width, and offering three thread pitch options: P1.0, P1.5, P1.75 for seamless biketrainer integration across a diverse range of models. Use scenarios You own multiple bikes with different rear spacing and train indoors on a common trainer. This adapter lets you switch quickly without tools while maintaining proper fit. You upgrade your trainer setup to a cleaner look and want reliable wear resistance for frequent indoor sessions. You run a bike or training facility where quick, tool swaps are needed to accommodate riders with various rearaxle configurations.