Ultegra dual-sided power meter
Shimano Ultegra FC-R8100-P Power Meter Crankset
Shimano's Ultegra crankset with dual-sided power measurement built in, so left and right leg output is recorded without any add-on pods. A strong-value route to proper power training on an R8100 bike.
Highlights
Why we rate it
Measures both legs
Strain gauges in each arm record left and right power separately, giving balance data you can actually trust.
Up to 300 hours per charge
The integrated battery is rated for around 300 hours of riding and charges through Shimano's EW-EC300 cable.
Works with your devices
Broadcasts over Bluetooth LE and ANT+ for head units, apps and training platforms, with wireless firmware updates.
Easy calibration
A switch on the transmitter handles zero offset, and active temperature compensation keeps readings steady as conditions change.
Ultegra chassis
It shares the hollow forged arms and HollowGlide outer ring of the standard Ultegra crank, so shifting and stiffness are unchanged.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Model code
- FC-R8100-P
- Series
- Ultegra R8100
- Speeds
- 2x12
- Chainrings
- 50-34T, 52-36T
- Crank lengths
- 165, 170, 172.5, 175mm
- Measurement
- Dual-sided, 24 strain sensors
- Accuracy
- ±2.0%
- Battery
- Integrated Li-ion 3.7V 0.66Ah, approx. 300 hours
- Charging
- EW-EC300 cable
- Connectivity
- Bluetooth LE and ANT+
- Weight
- 758g (50-34T), 769g (52-36T)
- Bottom bracket
- Hollowtech II 24mm, sold separately
Ordering
Available from The Cycle Collective
Available to order through The Cycle Collective in Dorking. For availability, setup or advice, call 0203 148 6764 or email hello@thecyclecollective.cc.