The SRAM Rival AXS XG-1250 D1 12 Speed Cassette gives you more range and a smoother gear progression. SRAM\'s 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.SRAM Rival AXS XG-1250 D1 12 Speed Cassette FeaturesX-Range™ gearing gives you more range and a smoother gear progression, so you’re always in the right gearNickel chrome plating for quiet durabilityFULL PIN construction for durability and lightweightDesigned to work with an XDR™ driver bodySRAM Rival AXS XG-1250 D1 12 Speed Cassette SpecificationsSpeed (CS): 12sGearing: 10-30tCog 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