Shimano Deore CS-M5100 11-Speed Cassette The Deore M1100 11-Speed cassettes feature a light weight minimal design sprocket carrier. 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 For 11-speed HG-EV MTB chains