Monitor the cadence and/or pedaling speed you ride with these easy-to-install wireless sensors. You just have to fix the sensors and get going. These sensors lack magnets and protruding parts, and are easy to install, care for, and change from bike to bike.The cadence sensor can be attached to any crank size and measures your pedal strokes per minute, so you get the most out of your training.The speed sensor attaches to the hub of any one of the wheels and self-calibrates with the Edge® to inform you of your speed and distance with all precision at all times, even if you train indoors with a roller.Combine both and improve your personal brand or check your ranking against the professionals.