The Deore M5100 11-Speed cassette features a lightweight, minimal design with a 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 for more efficient energy use through finer cadence control. Sprockets are cut away and drilled to reduce weight without reducing rigidity. Compatible with 11-speed HG-EV MTB chains. Available in 11-42T and 11-51T sizes.