Whether for prized race machines or the build of their dreams, the SRAM XG-1299 12 Speed Bicycle Cassette is the ultimate, giving riders unprecedented 520-percent range thanks to the new 10-52 tooth-span. Stronger racers are now free to choose larger chainrings for more top-end speed, without sacrificing climbing range. More time is spent higher up in the cassette where athletes power transfer is most efficient and wear is minimized. Featuring the industry’s strongest X-Dome™ architecture and proven XD™ driver body, the SRAM XG-1299 12 Speed Bicycle Cassette is also backwards compatible to give riders even more Eagle™ upgrade options for their current bikes. With multiple Olympic, World Cup and World Championship titles, it also matches up perfectly to XX1 Eagle AXS™ enabled componentry. The XG-1299 cassette utilizes the full depth of the new Eagle™ Colorsystem. Available in Black to Gold to Rainbow and all-new Copper, the XG-1299 cassette completes the expression of the worlds most accomplished and sought after bikes.

Stronger riders can increase chainring size for speed, without sacrificing climbing.
Eagle Colorsystem lets the cassette and chain express the look of the bike. Available in Black, Gold, Rainbow and all-new Copper.
Provides a massive 520-percent gear range.
XD Driver Body - XD is a cassette driver body design that allows use of a 10-tooth small cog and provides an improved interface with the cassette.
X-Dome - Technology that creates an incredibly lightweight, precise, strong cassette. The open design aids in mud clearance, giving you cleaner shifting performance and longer component life
Eagle - Technology that represents Sram's newest 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features Sram's all-new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over the drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11 drivetrains.
Speed - 12 speed
Gearing - 10x52t
COG Finish - Gold
Technology - XG
Drivetrain Configuration - 1X
Cassette Size (Max) - 52
Cassette Size (Min) - 10
Chain Technology - Eagle

Drive Parts Cassettes

Cassette XG-1299 Eagle 10-52 12 speed Copper