Shimano Dura-Ace CS-R9100 Dura-Ace 11-speed cassette 11 - 28T

Super lightweight 11-speed HG-EV cassette with a rigid carbon and alloy carrier for excellent shifting even under the most demanding gear changes. Hyperglide EV sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. The close ratio gearing allows a more efficient use of energy through finer cadence control. The largest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity and the 5 largest sprockets are made from titanium to reduce weight without sacrificing any strength. Sprockets are extensively cut away and drilled to further reduce weight without reducing rigidity

• Nickel-plated finish offers hard wearing resistance to corrosion
• Alloy cassette lockring
• For Super Narrow 11-speed HG-EV chains
• Average weight 175 grams for 11-25 tooth
• 11 Speed
• Discipline: Road / Time Trial & Triathlon
• Ratio: 11 - 28 teeth
• 11-12-13-14-15-17-19-21-23-25-28T