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