SRAM compatible, rear cassette, ideal for Hybrid and weekend trail MTB bikes.This cassette is specifically designed to operate with SRAM GX, XD and EAGLE Gear systems. Features: Compatible with SRAM 12 speed gear systems Corrosion resistant steel Sprocket range - 9t, 11t, 13t, 15t, 18t, 22t, 24t, 28t, 32t, 36t, 42rt, 50t Weight: 539g