Kassett SRAM XG-1251 12-speed 10-44T

X-Range gearing gives you more range and a smoother gear progression, so you’re always in the right gear.

440% range gives the coverage 1x gravel riders want.

For use with XPLR 1x rear derailleurs.

Compatible with Flattop chains.

Compatible with XDR driver body.

MINI CLUSTER technology for light weight and durability.

TECHNOLOGIES

MINI CLUSTER - The MINI CLUSTER hybrid cassette construction combines four small cogs that are CNC machined out of a single block of billet steel with an additional eight cogs that are individually pinned together. The result: a cassette that's light, durable and equipped with a gear range that's a perfect fit for any ride.

XDR - The XDR driver body is a universal mounting system for cassettes that incorporate cogs with fewer than 11 teeth. It allows for lighter and more versatile drivetrains without requiring rear axle standards, cassette tools or hub redesigns. The XDR interface is 1.85 mm longer than XD and is designed for road hub applications. XDR driver bodies are compatible with all XD cassettes when the casette is installed with a 1.85 mm spacer.

X-Range - Road bikes are faster and more capable than ever before, and riders are expanding what's possible with drop bar bikes. X-Range is gearing for today's road riding. We completely reimagined road gearing for wider range, more useful and smoother gear progression, as well as smarter shift settings - enabled by AXS. With X-Rane, you're always in the right gear.