. 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. 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 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 10-speed HG chains. Weight 163 grams for 11-23 tooth.
