GX Eagle Transmission Cassette (XS-1275)

$96.59

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Estimated delivery dates: Jan 19, 2026 - Jan 20, 2026
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Description

This exceptional cassette is crucial to the unparalleled inboard and outboard shifting performance of the Eagle Transmission system, particularly under heavy load. The GX Eagle Transmission cassette employs a full X-SYNC design, ensuring that the harder you pedal, the smoother and more precise the shifting becomes. With a chainline of 55mm, this cassette reduces extreme chain angles throughout its entire range, resulting in improved precision and extended chain durability.

The optimized 520% gear range of the GX Eagle Transmission cassette introduces larger 38 and 44-teeth cogs before the 52-tooth cog, enhancing the gear steps in the low-end range. This configuration offers superior performance compared to the Eagle drivetrain’s 10-52-tooth cassette. For effortless installation, the cassette is equipped with a clearly marked Setup Cog, making the setup process simple and foolproof.

The GX Eagle Transmission cassette utilizes a combination of Pindome design for gears 1-8 and a single-piece mini-cluster for gears 9-12. This innovative construction ensures optimal gear engagement, durability, and smooth shifting performance throughout the cassette.

Details

Speed: 12s T-Type
Gearing: 10-52t
Cog Finish: Black, Silver
Technology: XS
Cog Sizes: 10-52t:10,12,14,16,18,21,24,28,32,38,44,52
Weight: 445 grams (based on Engineering estimate)

SRAM Eagle Transmission AXS Compatibility:

The SRAM GX Eagle Transmission AXS Cassette is compatible with the following:

Frameset: Any frame that fulfills the “UDH Specification” featuring a hanger-less interface can be upgraded. The SRAM UDH Bike Finder lists all UDH bikes that are compatible with Eagle Transmission.
Battery: SRAM AXS Battery
Bottom Bracket: SRAM DUB “Wide”:BSA73PF89.5, PF92, PF30 MTB73, BB30
MTB73, BSA MTB68SP
Chain: XX SL, XX, X0 or GX Eagle Transmission chains
Chainring: XX SL, XX, X0 or GX Eagle Transmission chainring
Cassette: XX SL, XX, X0 or GX Eagle Transmission cassette
Controller: AXS POD Controller, AXS Pod Ultimate Controller
Crankset: XX SL, XX, X0 or GX Eagle Transmission cranksets
Freehub: SRAM XD compatible freehubs
PowerLock: Eagle Transmission PowerLocks only
Rear Derailleur: XX SL, XX, X0 or GX Eagle Transmission rear derailleur

SRAM Eagle Transmission is not compatible with previous-generation Eagle components. However, Eagle Transmission T-Type chainrings are backward compatible with Eagle chains, so they can be used on the current Eagle drivetrains. Non-T-Type Eagle chainrings will not work with Eagle Transmission chains.

Additional information
Range

Rear Speeds