Protects the bicycle frame during indoor training by providing stable support and reducing the risk of frame damage. Quickrelease axles available in multiple sizes to fit a wide range of bicycle models, enabling fast, tool setup and swap between bikes. Constructed from quality materials with careful manufacturing processes to ensure reliability and longterm durability. Length can be adjusted precisely using shims, allowing a fit for different trainer setups and bike geometries. Compatibility: Suitable for various bicycle models thanks to multiple axle sizes and shimbased length adjustment. Size and adjustability: Available in different sizes with shimbased length tuning to achieve the correct span for your trainer and bike. Performance: Designed for dependable performance, providing secure mounting and smooth operation during training sessions. Use scenario 1: You own both a road bike and a mountain bike. Use the appropriate quickrelease axle size and adjust the length with shims to fit each bike on your trainer without compromising frame safety. Use scenario 2: In a shared home gym, quickly switch the trainer setup between family bikes by swapping axles and rechecking shim lengths for a precise, snug fit. Use scenario 3: During maintenance or calibration at home, install the correct axle size, adjust with shims, and ensure the bike sits true and stable for safe servicing.