XG-1199 X-Dome 11sp Cassette, 10-42t, Silver NLA

- Gearing steps optimized for a 1x11 mountain drivetrain to provide a full, usable range \n- 1-piece open design X-Dome construction (9 middle cogs): CNC-machined from billet 4130 CrMo steel with weight-reducing and mud-evacuating ports\n- Largest cog is machined from 7075-T6 aluminum and interfaces with the X-Dome steel cogs to function as a structural unit\n- X-Glide tooth profiling designed for optimized, wide-range shifting performance