Garmin Cadence Sensor 2Monitor your pedaling cadence as you ride with this easy to install wireless sensor. With no magnets or other exposed parts to line up, this sensor is easy to install, maintain and move between bikes. The Cadence Sensor 2 fastens to any size crank arm and measures pedal strokes per minute so you can get the most out of your training. ANT+ and BLUETOOTH Low Energy technology let you send cadence data to Garmin Connect and other training apps and