Sram GX Eagle XG-1275

Unmatched Range and Durability.

The Sram GX Eagle XG-1275 is the definitive cassette for riders who want the performance of a professional drivetrain with real-world durability. Featuring a massive gear range, this cassette provides the "get out of jail free" climbing gears needed for the steepest trails while maintaining crisp, snappy shifting on the descents. Built using Sram’s FULL PIN™ technology, it is light enough for cross-country racing but tough enough to handle the high-torque demands of aggressive enduro riding.

Why the XG-1275 is a Trail Essential:

• FULL PIN™ Technology: Eleven lightweight, stamped steel cogs are held together by high-strength stainless steel pins. This creates a lightweight, "open" design that sheds mud and debris effortlessly, ensuring consistent shifting even in the worst conditions.

• 520% Gear Range: The massive 10-52T range provides more "bandwidth" than many triple-chainring setups, allowing you to clean technical climbs that were previously unrideable while keeping your top-end speed on fire roads.

• X-GLIDE™ 2 Shifting: Optimized tooth profiles and shifting ramps are engineered specifically for the 12Speed Eagle ecosystem, providing faster, quieter, and more secure shifting across the entire range.

• XD™ Driver Body Interface: Designed for the XD driver body, this mounting system creates a more stable connection between the cassette and the hub while allowing for a small 10T starting cog.

• Black Polar Finish: Not just for looks. The durable black finish provides a layer of corrosion resistance to keep your drivetrain running smoothly and looking sharp through multiple seasons.

Technical Specifications:

• Speed: 12Speed Eagle

• Range Options: 10-50T or 10-52T

• Cog Steps (10-52T): 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 52

• Driver Body: Sram XD™ only

• Weight: ~450g

• Model ID: CS-XG-1275-B1

The Alegro Perspective: The GX Eagle cassette is arguably the best "bang-for-your-buck" performance upgrade in mountain biking. While the premium XX1 version saves a bit of weight by being machined from a single block of steel, the GX provides the exact same shifting quality and range for less than half the price. It’s the smart choice for any high-performance trail or enduro build.

Massive Range. Precise Shifting. Own the Mountains with GX Eagle.

Installing a fresh cassette? Consider a new chain for a perfect, skip-free interface!