FC-R8100-P Cranks Shimano 12s Black

Scientific training requires accurate measurement and ease of use, and the new Ultegra R8100 power meter has both.

Its dual-sided measurement is accurate to 2.0% and zero offset calibration is a quick and easy process. And perhaps most importantly, its long battery life, easy recharging and ANT+ and Bluetooth®LE connectivity make using and recording your workouts easier than ever.