TheShimano Dura Ace 7900 10 Speed Cassette. A super lightweight 10-speed cassette with a rigid alloy carrier for excellent shifting even under the most demanding gear changes. Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. Shimano Dura Ace 7900 10 Speed Cassette Features. Close ratio gearing allows a more efficient use of energy through finer cadence control Largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity 4 largest sprockets are made from titanium to reduce weight without sacrificing strength Sprockets are extensively cut...
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