SRAM XX Eagle Transmission T-Type CS-XS-1297-A1 12-speed Cassette, XD

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  • Regular price $594.95

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⚠ For use with SRAM XD freehub bodies 

Cassette NOT compatible with: standard HG (8,9,10 or 11 speed) or MICRO SPLINE freehubs
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The SRAM XX Eagle Transmission T-Type CS-XS-1297-A1 12-speed cassette is a key component responsible for the exceptional inboard and outboard shifting performance under load in the Eagle Transmission system. Its full X-Sync design ensures that the harder you pedal, the smoother and more precise the shifts become. The cassette and derailleur are engineered as integrated and interdependent components, ensuring perfect alignment on any bike.

With a massive 520% gear range, and improved gear progression, complemented by 44 and 38-tooth cogs in the low-end range, offering versatile gearing options. The cassette's design allows for longer-lasting performance and enhanced precision, utilizing less extreme chain angles throughout the entire range. The installation process is made fool-proof with a clearly marked Setup Cog.

The XX Eagle Transmission Cassette features hardened tool steel for the machined X-Dome cluster, while the stamped steel 38T and 44T cogs are securely pinned to the lightweight aluminum 12th gear (Spider Cog). This combination of materials and engineering delivers a durable, precise, and high-performance cassette for your rides. Experience the best in shifting performance with the XX Eagle Transmission Cassette.


  • Full X-SYNC for best-ever inboard and outboard shifting performance under load
  • Optimized gear steps on low end
  • 55mm chainline compatibility for more moderate chain angle, longer wear and greater precision
  • Setup Cog for fool-proof set up
  • Utilizes well accepted and broadly available XD driverbody
  • Features X-DOME with a lighter aluminum 1st gear


SPEED (CS) 12s T-Type
COG SIZES 10-52t:10,12,14,16,18,21,24,28,32,38,44,52
WEIGHT (G) 385g