The CS-M9200 is the next evolution of the HYPERGLIDE + drivetrain. The new tooth profiles of the cassette improve shifting under high load while remaining smooth, fast, and durable. The cassette with 10-51 teeth provides a range of 510% and is thus the most versatile cassette in the XTR family. It is also compatible with MICRO SPLINE and is made of steel, titanium, and alloy sprockets to optimize weight and durability.