Shimano Dura Ace CS-R9100 11 Speed Cassette

Shimano Dura Ace CS-R9100 11 Speed Cassette

• Close ratio gearing allows a more efficient use of energy through finer cadence control

• Largest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity

• 5 largest sprockets are made from titanium to reduce weight without sacrificing 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: 175g -11-25T; 189g - 12-25T; 193g - 11-28T; 205g - 12-28T; 211g - 11-30T

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.