The spoke magnet by Cateye is indispensable for precise speed and distance measurement. With its slim design, the spoke magnet by Cateye fits seamlessly into the design of your bike and does not disturb the look in any way. The tool-free assembly makes installation child&';s play and saves you time-consuming screwing work. It is suitable for all Cateye units and fits both round and flat spokes. FEATURES OF THE CATEYE SPOKE MAGNET Slim design Tool-free mounting Variable mounting options Notice: The distance between sensor and magnet must not be greater than 5 mm. SPECIFICATIONS Manufacturer: Cateye Colour: Black/Silver Compatibility: Both round and flat spokes