Easily adjustable width for a precise fit: The adapter includes a variety of thickness spacers that allow quick width adjustment, ensuring a biketrainer thruaxle skewer fit every time. Simple installation and upgrade: Swap your bike's thruaxle with this adapter to gain wear resistance and a sleek appearance, making your indoor training setup faster to start and more reliable. Durable, reliable performance: Made from quality alloy, this cycle trainer skewer provides strong overall stiffness and longevity. It remains wearresistant and resists deformation and rust for lasting performance. Wide compatibility and flexible setup: Available in three thread pitch options P1.0, P1.5, and P1.75, and designed to fit rear axles from 135 mm to 148 mm, ensuring easy integration with a broad range of bike models and trainers. Practical use scenarios: You own multiple bikes with different axle widths (135–148 mm). Use the spacers to dial in the correct width on your trainer without needing separate skewers. You want a more durable trainer interface for longer indoor sessions, reducing wear and maintaining a clean look. You travel with a trainer and need to switch quickly between bikes; swap the thruaxle with the adapter and adjust as needed for a fast setup.