About SRAM XX1 Eagle XG-1299 10-52 12 Speed Cassette Rainbow
Whether for prized race machines or the build of their dreams, the XG-1299 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, it’s 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 utilises the full depth of the new Eagle™ Coloursystem. 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.

Features
Stronger riders can increase chainring size for speed, without sacrificing climbing

Eagle Coloursystem 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

Technology
XD Driver Body: XD is a cassette driver body design that allows the use of a 10-tooth small cog and provides an improved interface with the cassette.

X-Dome: X-DOME technology creates an incredibly lightweight, precise and strong cassette. The open design aids in mud clearance, giving you cleaner shifting performance and longer component life.

Eagle: Eagle technology represents SRAM's newest 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features all-new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11 drivetrains.

X-Glide 2: X-GLIDE 2 is next generation of SRAM X-GLIDE technology optimised for the EAGLE 12-speed cassette. It provides quick, precise, power-on shifting performance throughout the gear range, and increases chain retention on larger cogs.

Specifications
Speed (CS): 12s

Gearing: 10-52t

Cog Finish (Cassette): Rainbow

Technology (Cassette): XG

Cog Sizes: 10-52t: 10,12,14,16,18,21,24,28,32,36,42,52

About SRAM
Founded in 1987, SRAM (an acronym of the 3 founders names, Scott, Ray and Sam) is a privately owned bicycle component manufacturer located in Chicago. They're known for developing many of the inovative technologies used in bikes today including ETAP wireless electric shifting, Grip Shift, dedicated single chain ring drivetrains, narrow wide chainrings and more. Sram also own bicycle component brands Rockshox, Quarq, Zipp and Truvativ.