$269.99
In stock
Shimano CS-R9100 Cassette 11-25 Dura-Ace 11-Speed is designed for riders seeking maximum efficiency, tight gear spacing, and race-level performance. Engineered for smooth and precise shifting, this Dura-Ace cassette is ideal for flat terrain, fast group rides, and racing where maintaining optimal cadence is critical. The close-ratio 11-25T gearing allows for seamless transitions between gears, helping riders stay in their ideal power zone.
Built for professional-level road cycling, the Shimano CS-R9100 Cassette 11-25 Dura-Ace 11-Speed delivers fast, reliable shifting across all gears. Shimano’s advanced sprocket design ensures smooth engagement and efficient power transfer, allowing riders to accelerate quickly and maintain speed without interruption. This cassette is optimised for performance in race conditions where precision and responsiveness matter most.
The 11-25T gear range provides tight spacing between gears, making it perfect for riders who prioritise cadence control and efficiency on flatter terrain. Smaller jumps between gears mean smoother pedalling transitions and less disruption to rhythm, helping maximise performance during high-speed riding and competitive efforts.
The Shimano CS-R9100 cassette features a lightweight construction with a combination of titanium and steel sprockets mounted on an alloy carrier. This design reduces overall weight while maintaining strength and durability, ensuring consistent performance over time even under demanding riding conditions.
The Shimano CS-R9100 Cassette 11-25 Dura-Ace 11-Speed is compatible with standard Shimano 11-speed road freehub bodies and HG 11-speed chains. It is designed to integrate seamlessly with Dura-Ace R9100 drivetrains, providing optimal shifting performance and drivetrain efficiency.
• Dura-Ace 11-speed cassette for high-performance road cycling
• Close-ratio 11-25T gearing for smooth cadence transitions
• Fast and precise shifting performance
• Lightweight construction with titanium and steel sprockets
• Optimised for racing and fast road riding
• Compatible with Shimano 11-speed road freehub bodies
Model: CS-R9100
Series: Dura-Ace R9100
Speed: 11-speed
Gear Range: 11-25T
Combination: 11-12-13-14-15-16-17-18-19-21-23-25T
Technology: HyperGlide
Compatible Chain: Shimano HG 11-speed
Freehub Compatibility: Shimano 11-speed road
Sprockets: Titanium and Steel combination
The Shimano CS-R9100 Cassette 11-25 Dura-Ace 11-Speed is ideal for riders who want maximum efficiency, lightweight performance, and precise shifting. Trusted by professional cyclists, Dura-Ace components are built to deliver exceptional performance, making this cassette a premium choice for racing and high-speed road riding.
Looking to complete your drivetrain upgrade? Browse our full range of Shimano components available at George’s Bike Shop.
Shimano is a global leader in bicycle component innovation, producing high-quality parts for riders of all levels. From professional racing to everyday cycling, Shimano continues to set the benchmark for performance, reliability, and cutting-edge technology.
