Ultegra R8100 Power Meter Crankset
Ultegra R8100 Power Meter Crankset

Ultegra R8100 Power Meter Crankset


Sale price$1,159.99


Free shipping on all orders over $49. $9 shipping for orders under $49.

Cannondale, Santa Cruz, Cervelo, Gazelle, BMC, and *other bikes ship for FREE, but Gold Label Assembly will be added at checkout for only $79 (reg. $100) to cover the professional bike build and re-packaging by our certified technicians. It’s bike shop quality, direct to your door!

Some bikes not eligible for shipping due to manufacturer restrictions.

Shop with confidence! It's important to us that you are happy with your Mike’s Bikes purchase so we offer offer a 30-day return/exchange window for your unused gear and 14 days on all bikes. Our exchange and return process is fast and easy. If you choose to exchange for a different size or color, we will ship your product for free.

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Offering the precision and functionality needed for scientific training, the Shimano Ultegra FC-R8100 Power Meter Crank Arm Set provides dual-sided measurement that is accurate within 1.5%. 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
  • ±1.5% strain gage accuracy throughout the entire calibration range (depending on ANT+/Bluetooth® LE settings)
  • Proprietary strain gauge
  • Quick and easy start-up process