- Precise width adjustment for rear axles from 135 mm to 148 mm: includes spacers with different thicknesses to ensure a perfect fit between your bike and trainer, reducing setup time and incompatibilities. - Easy mounting and upgrade: simply replace the existing thru-axle with this adapter for a secure, durable, and streamlined indoor training setup. - Durable alloy construction: wear-resistant and sturdy material designed to resist deformation and rust for long-lasting use in indoor sessions. - Three thread pitch options: P1.0, P1.5, and P1.75 to accommodate different trainer interfaces and axle standards, enabling broad compatibility with various bikes and trainers. - Wide compatibility and seamless integration: designed to fit rear axles from 135 mm to 148 mm and compatible with a range of bike models and trainers for a versatile indoor training solution. - Use scenario: you own multiple bikes with different rear-axle widths and want quick adapter swaps to enable indoor trainer use without purchasing multiple skewers. - Use scenario: you switch between trainers or bike setups that require different thread pitches; select the appropriate pitch (P1.0, P1.5, or P1.75) for a secure fit. - Use scenario: you train indoors regularly and value a durable, corrosion-resistant component that maintains performance and appearance over time.