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

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

The key features of this 11-speed cassette are as follows:

• 11-speed HG-EV cassette
• It is Super lightweight with a rigid carbon and alloy
• Provides excellent shifting even under the most demanding gear changes
• The Hyperglide EV sprockets have a computer designed tooth configuration
• 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
• The 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 175 grams for 11-25 tooth
• Colour: Silver 
• Discipline: Road