Elevate your training and ride data accuracy with the COROS Bike Speed Sensor, designed to track real-time speed and distance with precision. Ideal for both outdoor rides and indoor trainer sessions, it ensures you can monitor performance even when GPS data is limited or unavailable. With seamless Bluetooth connectivity, the sensor pairs easily with most bike computers, smartwatches, smartphones, and training apps. Its compact, lightweight design mounts directly to your wheel hub for simple installation, while the IP67 water-resistant rating ensures dependable performance in all weather conditions. Key Features Tracks speed and distance in real-time without relying on GPS Bluetooth connectivity integrates with most bike computers, smartwatches, and training apps Compact design mounts easily to front or rear wheel hub CR2032 battery provides up to 12 months of use IP67 water resistance ensures durability in all-weather conditions