- Precise fit and reliable connection: versatile wedge set designed for exact width adjustment to create a secure coupling between your bicycle and indoor trainer. Reduces the chance of movement or misalignment during workouts. - Broad compatibility: fits rear axle widths from 135 mm to 148 mm and supports three thread pitches: P1.0, P1.5, P1.75. Works with a wide range of bikes and most trainers that use a quick-release or wedge-style interface. - Durable alloy construction: made from robust alloy that resists deformation and corrosion. Built to deliver consistent performance even in humid or wet conditions. - Easy installation and adjustment: engineered for straightforward mounting and fine width adjustment so you can attach and detach your bike quickly and get straight to training. - Thoughtful gift option: a practical, useful accessory to give for birthdays, parties, Christmas, or year-end celebrations — a useful way to show appreciation to cyclists who train indoors. Key specifications and functions - Function: quick-release/wedge adapter set for connecting a bicycle to a home trainer with precise width adjustment. - Compatibility: rear axle widths 135–148 mm; thread pitches P1.0, P1.5, P1.75. - Material: corrosion-resistant alloy, non-deforming for long-term reliability. - Performance: maintains a stable connection under typical indoor training conditions, including increased humidity or sweat. Practical use scenarios 1) Winter training at home: Quickly mount a road or mountain bike to your indoor trainer for consistent, stable rides during cold or wet months without frequent readjustment. 2) High-intensity interval sessions: Rely on precise width adjustment and a secure coupling so you can sprint and climb without the trainer connection shifting. 3) Shared trainer setup: Use it when switching different bikes onto one trainer — the broad compatibility and easy adjustment make transitions faster and more reliable. What it solves - Eliminates guesswork in aligning bike dropouts with the trainer by providing fine width control. - Reduces interruptions during workouts caused by a loose or unstable connection. - Offers a long-lasting, rust-resistant solution that performs reliably even in damp environments. Contents and suitability - Wedge/quick-release set sized for rear axle widths 135–148 mm with thread pitches P1.0, P1.5, P1.75. - Suitable for cyclists who want a dependable, easy-to-use interface between their bike and an indoor trainer. If you need a durable, precise adapter to connect your bike to a trainer — compatible with the common axle widths and thread pitches listed above — this wedge set provides consistent performance and easy adjustment for effective indoor training.