Shimano Ultegra FC-R8100-P Dual-Sided Power Meter HOLLOWTECH II Crankset 2x12-speed

Offering all the precision and functionality of the DURA-ACE power meter, the ULTEGRA FC-R8100-P power meter comes in a more affordable package.

Scientific training requires accurate measurement and user-friendliness, and the new ULTEGRA R8100 power meter has both. Its dual-sided measurement is accurate within 1.5% and zero offset calibration is a quick and easy process. Perhaps most importantly, its long battery life, easy recharge, and ANT+ and Bluetooth®LE connectivity makes using and recording your workouts easier than ever.

Integrated, waterproof, and rechargeable Li-ion battery
- Up to 300+ hours (TBD*) of ride time * Depending on ANT+/Bluetooth®LE settings
Accurate data collection
- ±1.5% (TBD*) strain gage accuracy throughout the entire calibration range * Depending on ANT+/Bluetooth®LE settings
- Proprietary strain gauge
Possible to start quickly
- Simple zero offset calibration with switch on transmitter
Active temperature compensation
- Software automatically compensates for temperature changes