The workhorse of X-Range™ gearing. The SRAM RED® XG-1290 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.
• Updated design for smoother and faster shifting
• More gradual gear progression between cogs—at least five one-tooth jumps
• 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
                     
                    
•  SPEED	12s
•  GEARING	10-26t, 10-28t, 10-33t
•  COG FINISH	Silver
•  TECHNOLOGY	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