SRAM Red XG-1290 12-Speed Cassette - 10-28T

The workhorse of X-Range gearing. The SRAM Red XG-1290 12-speed cassette progresses fluidly and quickly through a wider range of gears. It's specifically designed for wireless electronic shifting and the one-piece design offers you the best in weight savings.Designed for smooth and fast shiftingGradual gear progression between cogs at least five one-tooth jumps while still offering a wider range10-tooth start helps provide a wider gearing rangeDesigned to work with an XDR driver bodyOne-piece machined steel X-DOME design for weight savingsAll Zipp wheels starting from 2012 are XDR readySpeed (CS) - 12sGearing : 10-26t, 10-28t, 10-33tCog finish (Cassette): Rainbow & SilverTechnology (Cassette): XGCog sizes: 10-26t;10,11,12,13,14,15,16,17,19,21,23,2610-28t;10,11,12,13,14,15,16,17,19,21,24,2810-33t;10,11,12,13,14,15,17,19,21,24,28,33