SRAM XG-1290 Cassette, 12 spd

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.

FEATURES

• Updated design for smoother and 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