The Garmin Speed and Cadence 2 sensors are easy-to-install wireless sensors. These sensors will guide you in improving your ride. They have no magnets or other exposed parts to line up, allowing them to be easy to install, maintain and move between bikes. The Speed Sensor 2 attaches to the hub of either wheel and calibrates with the Garmin Edge cycling computer or compatible Garmin device. It will give you accurate speed and distance at all times - even without the head unit. The Cadence Sensor 2 attaches to any size crank arm, measuring pedal stroke per minute. Features: - ANT+ and Bluetooth Low Energy Technology- Send live speed, distance and cadence data to compatible training apps or displays

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