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Shimano Ultegra FC-R 8100P Powermeter


Crankset Ultegra FC-R8100P Powermeter


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



Average weight 758 (50-34T) 769 (52-36T)
Remarks * Crankset specifications not listed here are the same as FC-R8100
Chainring combination 50-34T 52-36T
Crank arm length (mm)_165 - (50-34T) X (52-36T)
Crank arm length (mm)_170
Crank arm length (mm)_172.5
Crank arm length (mm)_175
Firmware update by E-TUBE PROJECT
Accuracy (%) ±2
Active temperature compensation
Battery_Charging cable EW-EC300
Battery_Charging port
Battery_Life 300 h or longer
Battery_Type_Lithium ion
Cadence mesurement_Magnet
Di2 connectivity wireless_ANT+ _Bicycle power
Di2 connectivity wireless_Bluetooth® LE_Cycling power
Di2 connectivity wireless_Bluetooth® LE custom (*1)_Compatible with E-TUBE PROJECT
Di2 connectivity wireless_Bluetooth® LE custom (*1)_Compatible with E-TUBE RIDE
Force measurement_Left side
Force measurement_Number of strain sensor 24
Force measurement_Right side
LED for system status
Number of control button 1
SD300 connector (pcs) 0
SD300 port (pcs) 0
SD50 connector (pcs) 0
SD50 port (pcs) 0
Zero offset_By control button
Zero offset_By device
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