Monitor your speed as you ride with this easy-to-install wireless sensor.
Speed Sensor
The speed sensor attaches to the hub of either wheel and self-calibrates with your Edge to give you accurate speed and distance at all times, including indoors on the turbo trainer.
Easy-to-install
Simply attach the sensor and ride. With no magnets or other exposed parts to line up, this sensor is easy to install, maintain and move between bikes.