These aren't ordinary pedals. The P1 pedal is a simple, intelligent and uncompromising design that provides the same proven PowerTap accuracy and reliability. The simple one-piece design easily mounts to any crank and does not require calibration nor installation angle setting, providing a true “plug-and-play” experience. The P1 also features dual band ANT+ and Bluetooth SMART for compatibility with a multitude of head units and smart devices. Plus, the independent measurement opens the possibility for a new set of pedaling metrics previously unavailable to help give you the ultimate competitive edge.