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
- Simple zero offset calibration with switch on transmitter
- Active temperature compensation
Specifications:
- BB Included: No
- Chainline/Hub Compatibility: 130 Hubs
- Chainring BCD: 110 Shimano Asymmetric
- Color: Black
- Crank Intended Use: Road
- Crank Length (mm): 172.5
- Defined Color: Black
- Drivetrain Speeds: 12
- Number of Chainrings: Double
- Pedal Spindle: 9/16"
- Rings: 52/36
- Spindle Interface Type: Shimano Hollowtech II
