Shimano Sora HG50 9 Speed Cassette Silver, 12 25 Teeth

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The Shimano Sora HG50 9 Speed Cassette features Hyperglide sprockets which have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load.Key Features:High quality 9-speed cassetteHyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under loadClose ratio gearing allows a more efficient use of energy through finer cadence controlSprockets are cut away and drilled to reduce weight without reducing rigidityNickel-plated finish offers hard wearing resistance to corrosionCorrosion-resistant steel cassette lockringFor Super Narrow 9-speed HG chainsAverage weight 270 g for 12 - 23T

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High quality 9-speed cassette Hyper glide sprockets have a computer designed tooth configuration with contoured shift gates Close ratio gearing allows a more efficient use of energy through finer cadence control Sprockets are cut away and drilled to reduce weight without reducing rigidity Nickel-plated finish offers hard wearing resistance to corrosion