10-51t offering provides 510% of range, making it the most versatile cassette in the XT family options The strategic use of steel and aluminum ensures the CS-M8200 cassette is robust enough to provide confidence to any style of rider CS-M8200 XT cassette is compatible with the MICRO SPLINE freehub body standard The Shimano CS-M8200 XT cassette represents the evolution of HYPERGLIDE + shifting and is most versatile cassette in the Deore XT family. New cassette cog tooth profiles improve shifting under high load while remaining smooth, fast, and durable. The CS-M8200 It is also MICRO SPLINE-compatible and built with steel and aluminum cogs to optimize weight and durability.