Shimano Dura-Ace R9100 11-speed Cassette
The Shimano CS-R9100 Dura-Ace cassette represents the pinnacle of road performance. Designed for maximum efficiency, it combines lightweight materials and precise engineering for flawless shifting. The carbon spider arm reduces weight, titanium sprockets enhance durability, and the HG-EV 11-speed system ensures silky-smooth gear transitions.
- Use: Road
- Group: Dura-Ace
- Model: CS-R9100
- Type: HG-EV
- Gear: 11-speed
- Teeth: 11–30 (11-12-13-14-15-17-19-21-24-27-30)
- Compatible chain: HG-EV 11-speed, HG-X 11-speed
- Spider arm: Carbon
- Sprockets (7–11): Titanium
- Sprockets (1–6): Steel
- Lock ring: Aluminum
- Weight: 211 g (manufacturer data)
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Shimano is a Japanese component manufacturer that since 1921 has been one of the world’s largest suppliers of bicycle drivetrains, brakes and cycling-specific parts. Shimano groupsets — from Tourney for city bikes to top-tier Dura-Ace — are found on virtually every serious bike brand. The company also makes fishing tackle and rowing components.