Shimano Ultegra FC-R8100-P parts-electronic-shifting-components it is also compatible with

it is also compatible with Shimano power meters

5% and isn’t affected by temperature changes

unwavering performance

Low stack height keeps the cyclist's sole as close to the center of the pedal axle as possible

Super-stiff

Shimano Ultegra FC-R8100-P parts-electronic-shifting-components it is also compatible withOffering all the precision and functionality of the Dura Ace power meter, the Ultegra FC R8100 P power meter comes in a more affordable package. Integrated, waterproof, and rechargeable Li ion battery Up to 300+ hours of ride time. * Depending on ANT+ Bluetooth LE settings Accurate data collection. Software automatically compensates for temperature changes 1. 5% strain gage accuracy throughout the entire calibration range. * Depending on ANT+