Shimano Deore XT 12 Speed M8100 Cassette - 10-51

High performance 12-speed Micro Spline MTB 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 Largest sprockets are mounted on lightweight alloy carriers to reduce weight and increase rigidity Sprockets are cut away and drilled to further reduce weight without reducing rigidity 10-45T wide ratio gearing allows a more efficient use of energy through finer cadence control in ever changing trail conditions Chrome-plated finish offers hard wearing resistance to corrosion Alloy cassette lockring For use with 12-speed MTB chains Average weight: 461 g for 10-45T Speed 12 Speed