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High quality 9-speed cassette 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 Sprockets are cut away and drilled to reduce weight without reducing rigidity Nickel-...

 10 Speed Cassette 11-36t Slx CS-HG81-10  Shimano CS-HG81 10-Speed Cassettes Optimized tooth profiles for HG-X chain and Shadow rear derailleur Three rings on spider The CS-HG81-10 cassette meets durability requirements for E-MTB applications DETAILS Model Name: SLX CS-HG81 10-Speed Cassette Designed for ebike: Yes Cassette Cogs: 11-13-15...