General description Our premier X-Range gearing utilizes tight jumps between chainrings and a 12-speed wide range cassette starting at 10 teeth, now available for Rival. This cassette features smooth, precise shifting across a range that covers road, gravel, and everything in between. Technical specifications Speed: 12-speed Gearing options: 10-30t, 10-36t Cog sizes for 10-30t: 10, 11, 12, 13, 14, 15, 17, 19, 21, 24, 27, 30 Cog sizes for 10-36t: 10, 11, 12, 13, 15, 17, 19, 21, 24, 28, 32, 36 Driver body interface: XDR Finish: Nickel chrome plating for quiet operation and durability Construction: FULL PIN for durability and lightweight design