The Garmin Cadence Sensor II allows you to monitor your pedaling cadence effortlessly. This wireless sensor easily attaches to any crank arm size, ensuring quick installation and portability between bikes. It measures your pedal strokes per minute (RPM), helping you maximize your training effectiveness. With ANT+® and Bluetooth® Low Energy technology, you can seamlessly send cadence data to Garmin Connect™ and other compatible devices and training apps. Enhance your cycling performance with this essential accessory.