Sram XG-1299 XX1 Eagle 12 Speed Cassette 10-50T RainbowThe Sram XG-1299 XX1 Eagle 12 Speed Cassette gives you the most efficient and durable shifting components available. Matches up perfectly to perform with XX1 Eagle AXS enabled components. X-Dome architecture has been tested to be the strongest design on the market. XD Driver compatible. This cassette has 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 50 tooth sets. Available in Rainbow.710845824050