• Integral piece of X-Range gearing technology and AXS drivetrains. Each cassette features a 10-tooth small cog and is designed specifically for wireless electronic shifting, improving shift performance.
• 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
• XDR driver body required
• One-piece machined steel X-Dome design for weight savings
• SRAM Model ID: CS-XG-1290-D1