Garmin Speed & Cadence Sensor

Monitor your pedaling cadence and/or speed as you ride with Garmin's easy-to-install wireless sensors. With no magnets or other exposed parts to line up, these sensors are easy to install, maintain and move between bikes. The cadence sensor fastens to any crank arm size and measures pedal strokes per minute so you can get the most out of your training. 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.