Shimano Ultegra FC-R8100-P 12 Speed Hollowtech II 172.5mm 52-36T Crankset

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