Shimano Dura-Ace FC-R9100-P Compact Power Meter Chainset HollowTech II 175mm 50/34T
Engineered for Elite Performance and Unmatched Precision
The Shimano Dura-Ace FC-R9100-P Power Meter Chainset is the pinnacle of power measurement technology, refined through years of development and collaboration with professional cycling teams. Designed for competitive riders and serious athletes, this 11-speed HollowTech II chainset delivers incredibly accurate, dual-sided power data in a compact, lightweight form.
Industry-Leading Power Accuracy
Equipped with high-precision strain gauges embedded in both crank arms, the R9100-P measures power output from each leg independently. Enjoy +/-2% accuracy, even under intense load and varying conditions, perfect for precise performance analysis and structured training.
Advanced Connectivity & Smart Data Integration
Connect effortlessly with your cycling computer or training platform using Bluetooth® and ANT+. Benefit from wireless firmware updates and real-time data transmission for a fully integrated training experience.
Fully Integrated Rechargeable Battery
The internally sealed, rechargeable battery system is not only long-lasting but also completely waterproof, ensuring maximum reliability and performance in all weather conditions.
Optimised for Rigidity, Speed & Smooth Shifting
Featuring a HollowTech II design, this chainset maximises stiffness while minimising weight. The cold-forged hollow crank arms offer superior strength and efficiency, while the hollow 50/34T outer chainring delivers crisp, fast gear changes, even under maximum load.
- Virtually eliminates chainring flex for improved shifting performance
- Specifically engineered for Shimano 11-speed chains for optimal power transfer
- Enhanced chain-to-tooth contact for better efficiency during high-output pedaling
Built for Custom Fit and Pro-Level Efficiency
With multiple chainring options and crank arm lengths available, this power meter chainset is customisable to suit a wide range of riders and racing disciplines. The integrated HollowTech II bottom bracket system features wider bearing placement and a larger axle diameter for improved pedaling efficiency, stiffness, and durability.
- Dual-sided power measurement with +/-2% accuracy
- Strain gauges embedded in both crank arms
- Bluetooth and ANT+ connectivity
- Wireless firmware updates
- Waterproof, rechargeable internal battery
- HollowTech II construction for stiffness and low weight
- 50/34T compact chainrings for balanced climbing and speed
- 175mm crank arm length
- Compatible with 11-speed drivetrains
Perfect for competitive cyclists seeking ultimate precision, performance, and integration, the Shimano Dura-Ace FC-R9100-P Power Meter Chainset sets the benchmark for power-based training.