Sram: Our premier X-Range gearing, which utilizes tight jumps between chainrings and a 12-speed, wide range, 10-tooth start cassette, is now available for Rival. This includes new cassettes that feature smooth, precise shifting in ranges that cover road, gravel and everything in between.FEATURESX-Range™ gearing gives you more range and a smoother gear progression, so you’re always in the right gearNickel chrome plating for quiet and durabilityFULL PIN construction for durability and light weightDesigned to work with an XDR™ driver body SPECIFICATIONSSpeed (CS): 12sGearing: 10-30t, 10-36tCog finish (Cassette): SilverTechnology (Cassette): XGCog sizes: 10-30t:10,11,12,13,14,15,17,19,21,24,27,30 / 10-36t:10,11,12,13,15,17,19,21,24,28,32,36Driver body interface: XDR