The FC-R9100 HOLLOWTECH II crank shaping improves upon DURA-ACE’s iconic 4-arm design, adding strength and rigidity while minimizing weight.
Most advanced component group of all time: The Shimano Dura Ace 2×11-speed Crank FC-R9100
Shimano’s Rider Tuned gearing offers a number of chainring configurations with a singular BCD for ease of use and versatility. Through redesigned chainring tooth profiling, the DURA-ACE R9100 crankset is adapted for the latest disc brake frame designs without the need to increase q-factor. Enhanced design saves 7g while maintaining rigidity and iconic 4-arm construction Optimized crank arm design strengthens key stress zones.
With the introduction of DURA-ACE R9100, Shimano has reestablished the new benchmark for road performance by improving each component and incorporating its newest digital technologies. DURA-ACE R9100 delivers unparalleled performance, highly-refined ergonomics and immense customization to maximize every rider’s potential.
Engineered for the next generation of race bike, DURA-ACE R9100 offers top-tier performance across numerous configurations. Available with either Di2 electronic or mechanical shifting, for the first time, riders now have the option of premium DURA-ACE hydraulic disc brake performance. New Shimano technologies further integrate the DURA-ACE as a system, including a new power meter, while riders further integrate with their bike through new E-Tube wireless connectivity. Shimano’s Rider Tuned philosophy and customization of the bicycle’s function also expands with a wider range drivetrain that now includes intuitive Shimano Synchro Shift control.
- Use: Road
- Group: Dura Ace
- Model: FC-R9100
- Gradation: 50-34T
- Crank Arm Length: 170mm, 172.5mm
- Q-Factor: 146mm
- Threaded BB shell width: 68 / 70mm
- Gear front: 2-speed
- Gear rear: 11-speed
- Construction: Hollowtech II
- Compatible Chain: HG-EV 11-speed, HG-X 11-speed
- PCD: 110mm
- Chain line: 43.5mm
- Weight: 609g (manufacturer information)
- Crank arm: Aluminum Anodized
- Crank axle: Steel Plated
- Large Chainring: Aluminum Anodized / CFRP
- Small Chainring: Aluminum Anodized