Dual-sided chainset power meter
INPEAK TWiN2 Ultegra R8100 Dual Power Meter Chainset
Shimano's Ultegra R8100 chainset fitted with INPEAK meters on both arms for true left/right data. Rechargeable over a magnetic USB lead, with extra side gauges on this model for accuracy.
Highlights
Why we rate it
Both legs measured
Separate sensors on each crank report true left/right balance rather than doubling one side.
Complete chainset
Arrives as a full Shimano Ultegra chainset with the meters fitted, ready to install on a Hollowtech II bottom bracket.
Rechargeable
Magnetic USB charging, around 90 hours per charge and a full top-up in roughly two hours.
Extra gauges
INPEAK adds side strain gauges on this version to improve measurement accuracy.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Compatibility
- Shimano Ultegra FC-R8100 12-speed chainset (Hollowtech II, 24 mm axle)
- Measurement
- Dual-sided (left and right) TWiN2; power, cadence, L/R balance, pedal smoothness, torque effectiveness
- Accuracy
- ±2%
- Power range
- 20–2000 W
- Cadence range
- 20–200 rpm
- Connectivity
- ANT+ and Bluetooth Low Energy
- Water resistance
- IP67
- Temperature compensation
- Automatic, -5°C to +50°C operating range
- Calibration
- Manual zero offset
- Battery
- Rechargeable Li-Po, magnetic USB charging
- Battery life
- Up to 90 hours riding; full charge in about 2 hours
- App
- INPEAK MANAGER for firmware updates and scale factor; Zwift-compatible mode
In the box
- Includes
- Shimano chainset with left and right power meters fitted, magnetic USB charging cable, device data card, sticker set, quick-start manual (USB wall charger not included)
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.