The workhorse of X-Range™ gearing. The SRAM RED® XG-1290 cassette progresses fluidly & quickly through a wider range of gears. It’s specifically designed for wireless electronic shifting & the one-piece design offers you the best in weight savings.
Features: Updated design for smoother & faster shifting More gradual gear progression between cogs—at least five one-tooth jumps—while still offering a wider range 10-tooth start helps provide a wider gearing range Designed to work with an XDR™ driver body One-piece machined steel X-Dome™ design for weight savings All Zipp wheels starting from 2012 are XDR™ ready Specifications: Speed (CS): 12s Gearing: 10-26t, 10-28t, 10-33t Cog finish (Cassette): 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;10, 11, 12, 13, 14, 15, 17, 19, 21, 24, 28, 33