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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 2.0% 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 of ride time * Depending on ANT+/Bluetooth®LE settings
  • Accurate data collection
  • ±2.0% strain gage accuracy throughout the entire calibration range
  • Proprietary strain gauge
  • Possible to start quickly
  • Simple zero offset calibration with switch on transmitter
  • Active temperature compensation
  • Software automatically compensates for temperature changes
  • The provision of new force vector data makes it the optimal training tool to analyze and improve pedal stroke efficiency
  • With SHIMANO CONNECT Lab, you can analyze and visualize your training and power data

Made in Japan

Shimano Ultegra R8100-P Crankset Powermeter

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