SRAM Eagle XG-1299 12-Speed Cassette

The SRAM Eagle XG-1299 12-speed cassette is a premium drivetrain component that combines low weight, wide-range gearing and precise shifting for high-performance mountain bike setups. A 520% gear range supports both steep climbing and high-speed riding, while X-Dome construction reduces weight without losing strength. The open design helps clear mud to keep shifting consistent in poor conditions. Premium Gold and Rainbow finishes complete a high-end build.

Key Features and Benefits:

• 520% gear range (10-52T): A wide spread of gears allows you to use a larger chainring for higher top-end speed while still keeping a low climbing gear. This improves efficiency across varied terrain and helps maintain cadence on steep and fast sections.
• X-Dome architecture: Machined from a single block of steel, this design removes unnecessary material while keeping structural strength. This reduces overall weight and increases durability, leading to long-term performance under high load.
• Open cassette design: Large gaps between cogs allow mud and debris to pass through rather than build up. This keeps shifting clean and reliable in wet and gritty conditions, reducing missed shifts and drivetrain wear.
• XD driver body compatibility: The cassette mounts securely to SRAM’s XD freehub system, which supports a 10T small cog. This enables a wider gear range and more efficient power transfer, improving overall drivetrain performance.
• Eagle drivetrain compatibility: Designed to work seamlessly with SRAM Eagle 12-speed systems, ensuring smooth and accurate shifting. This allows easy integration into existing setups and maintains consistent performance across components.
• Premium Gold and Rainbow finishes: High-quality coatings provide added resistance to wear and corrosion while giving a distinctive look. This maintains appearance over time and complements high-end bike builds.

Consistent shifting and efficient power transfer define how this cassette performs on the trail. The combination of wide gearing and a 10T start cog supports steady cadence across changing gradients. X-Dome construction keeps weight low without compromising strength, while the open design reduces the impact of mud on shifting accuracy. Each feature works together to deliver dependable performance under load.

This cassette suits riders who want a reliable upgrade that improves range, reduces weight and maintains shifting precision. It supports demanding riding conditions and long-term use without added complexity. A well-matched choice for completing a high-performance Eagle drivetrain.

Specifications:

• Speed compatibility: 12-speed
• Gear range: 10-52T
• Cog sizes: 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 52
• Cassette technology: XG
• Cog finish: Gold, Rainbow
• Drivetrain configuration: 1x
• Minimum sprocket: 10T
• Maximum sprocket: 52T
• Chain technology: Eagle
• NOT Compatible with T-Type