Shimano XT M8200 12 Spd MTB Cassette CS-M8200 represents the evolution of HYPERGLIDE + shifting. New cassette cog tooth profiles improve shifting under high load while remaining smooth, fast, and durable. The 10-51T offering provides 510% of range, making it the most versatile cassette in the DEORE XT family. It is also MICRO SPLINE-compatible and built with steel and alloy cogs to optimize weight and durability. 510% Range: The widest gear range and most frame compatibility of all DEORE XT cassette options. Freehub Compatibility CS-M8200 is compatible with the MICRO SPLINE freehub body standard. Build Materials: The strategic use of steel and alloy ensures the CS-M8200 cassette is robust enough to provide confidence to any style of rider.