\n\t\t\tCS-R9100 Dura-Ace 11-speed cassette 12 - 28T
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\n\t\t\tGenuine Shimano replacement part
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\n\t\t\tShimano's CS-R9100 Dura-Ace (11-speed) is the most recent addition to the Dura-Ace line's top-tier. Dura-Ace is the preference of the world's best riders because it offers the ultimate in lightweight and solid materials.
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Features & Benefits: \n\t\t
\n\t\t\t- \n\t\t\t\tSuper lightweight 11-speed HG-EV cassette with a rigid carbon and alloy carrier for excellent shifting even under the most demanding gear changes
\n\t\t\t- \n\t\t\t\tHyperglide EV sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load
\n\t\t\t- \n\t\t\t\tClose ratio gearing allows a more efficient use of energy through finer cadence control
\n\t\t\t- \n\t\t\t\tLargest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity
\n\t\t\t- \n\t\t\t\t5 largest sprockets are made from titanium to reduce weight without sacrificing strength
\n\t\t\t- \n\t\t\t\tSprockets are extensively cut away and drilled to further reduce weight without reducing rigidity
\n\t\t\t- \n\t\t\t\tNickel-plated finish offers hard wearing resistance to corrosion
\n\t\t\t- \n\t\t\t\tAlloy cassette lockring For Super Narrow 11-speed HG-EV chains
\n\t\t\t- \n\t\t\t\tAverage weight 175 grams for 11-25 tooth
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