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Shimano Ultegra 8100 PRECISION 3+ Left-Side Power Meter

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Why We Like The Shimano Ultegra 8100 PRECISION 3+ Left-Side Power Meter

The Shimano Ultegra 8100 PRECISION 3+ Left-Side Power Meter delivers wattage, cadence, and calories burned directly to our head unit of choice. As the only crank-based power meter to use 3 strain gauges, all forces in our pedal stroke are measured with +/-1% accuracy and features an automatic terrain selector for responsive cadence and power feedback. From a steep climb up the canyon to a Zwift ride in our living room, this left-side power meter has us covered.


  • Ultra-light left-side power meter for Shimano Ultegra FC-R8100 cranksets
  • Easily install straight out of the box with the standard Shimano crank installation
  • Offers up to 800 hours of battery life with the CR2032 coin cell battery
  • Compatible with all popular indoor training apps with ANT+ and Bluetooth connection
  • Add to the Find My app to locate on apple products when not in use
  • Item #FII000Q
Powermeter Type
Shimano Ultegra FC-R8100
IPX7 waterproof rating, automatic terrain selector, Apple Find My feature, ANT+ and Bluetooth connectivity
Accuracy (+/-)
CR2032 Coin Cell
Operating Time
up to 800 hours
Claimed Weight
road cycling
Manufacturer Warranty
3 years

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