Fit: Includes a set of spacers for easy width adjustment, enabling a precise pairing of your bike and trainer for performance. Easy to Mount: the existing thruaxle with this adapter for effortless upgrading, improved durability, a sleek appearance, and fast indoor training initiation. Reliability Upheld: Made of tough alloy material, this cycle trainer skewer is sturdy, wearresistant, and built to last without deformation or rust. Seamless Indoor Training Setup: Available in three thread pitch options—P1.0, P1.5, P1.75—and designed to fit rear axles from 135 mm to 148 mm, ensuring wide compatibility and easy integration with various bike models and trainers. Use scenarios Scenario 1: You have a road bike with a rearaxle width within 135–148 mm. Use the spacers to adjust the width, then mount the bike to your trainer for a secure, stable workout. Scenario 2: Your trainer or bike has an incompatible thruaxle. the existing thruaxle with this alloy adapter to achieve a strong, durable connection and a clean setup for indoor training. Scenario 3: You switch between multiple bikes or travel with bikes that use different thread pitches. Select the appropriate thread pitch (P1.0, P1.5, or P1.75) to maintain quick, reliable setup across setups.