Garmin Bike Cadence Sensor<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Easy-to-install - Simply attach the sensors and ride. With no magnets or other exposed parts to line up， these sensors are easy to install， maintain and move between bikes.</li><li>Cadence sensor - Fastens to any crank arm size and measures pedal strokes per minute so you can get the most out of your training.</li><li>Cadence sensor - Fastens to any crank arm size and measures pedal strokes per minute so you can get the most out of your training.</li><li>Includes: Cadence sensor， Cadence sensor straps， manual</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41OsxB1ur3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41bVNzY1mkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/414yLxbM0xL.jpg" noproxy>