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 minimised. 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 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.
The SRAM XG-1299 Eagle cassette delivers the ultimate combination of lightweight performance, wide-range gearing and premium finishing for high-end mountain bike builds. With a 520% gear range, it allows riders to run larger chainrings for increased top-end speed while maintaining the climbing capability needed for steep terrain and demanding race courses.
Built using SRAM's X-Dome architecture, the cassette offers exceptional strength with minimal weight, while the open design improves mud clearance and shifting consistency in challenging conditions. Designed for use with XD driver bodies and compatible with Eagle drivetrains, it provides a premium upgrade option for riders looking to maximise drivetrain performance.
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.
Features
- Stronger riders can increase chainring size for speed, without sacrificing climbing
- 520% gear range for maximum climbing capability and top-end speed
- X-Dome architecture for lightweight strength and durability
- Open design improves mud clearance and shifting consistency
- Compatible with XD driver bodies
- Backwards compatible with Eagle drivetrains
- Premium finishes available in Gold and Rainbow
Specification
- Speed Compatibility: 12-Speed
- Gear Range: 10-52 Tooth
- Cog Sizes: 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42 & 52 Tooth
- Cassette Technology: XG
- Cog Finish: Gold, Rainbow
- Drivetrain Configuration: 1x
- Minimum Sprocket: 10 Tooth
- Maximum Sprocket: 52 Tooth
- Chain Technology: Eagle













