CATEYE Small Parts Speed Sensor for Velo-7 (CC-VL820 / CC-VL520)The CATEYE Speed Sensor for Velo 7 is a genuine replacement sensor designed specifically for Cateye Velo 7 cyclocomputers, including models CC VL820 and CC VL520. This sensor ensures accurate speed and distance measurement, restoring your cyclocomputers performance when replacing a damaged or lost sensor. Built with Cateyes trusted quality and precision, the sensor mounts easily to the bike fork and works seamlessly with the original magnet and head