sram kassette xg 1270 10 28t 12 fach silberDesigned for the next generation of drivetrainsand the next generation of riders. The SRAM Force XG 1270 cassette is optimized for electronic shifting and features our X Range gearing technology. Smooth, precise shifts, from 10T on up. Speed (CS): 12s Gearing: 10 26t, 10 28t, 10 33t Cog finish (Cassette): Black, silver Technology (Cassette): XG Cog sizes: 10 26t; 10,11,12,13,14,15,16,17,19,21,23,26, 10 28t; 10,11,12,13,14,15,16,17,19,21,24,28, 10 33t;