The FC-R9100-P delivers world-class power measurement seamlessly designed into the DURA-ACE HOLLOWTECH II crank.
The dual-sided strain gauges are internally hard wired together for reliable performance in all weather conditions and accurate measurement regardless of pedaling position.
Shimano’s integrated approach also ensures simplified maintenance with a single rechargeable battery powering the entire unit and the ability to wirelessly update firmware.
CHAINRINGS ARE NOT INCLUDED WITH THIS MODEL
- Integrated design delivers system reliability and waterproof performance in all conditions
- Dual-side strain gauges are hard wired together for accurate data collection and direct response
- ±2% strain gauge power measurement accuracy
- Stable power measurement system across all pedaling positions
- Reliable electrical system that is waterproof in all conditions
- Single rechargeable battery for easy maintenance
- Easily swap chainrings without affecting power measurement
- Bluetooth and ANT+ wireless communication