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SRAM XX Eagle Transmission XS-1297 12-Speed Cassette

sku# 243235
SRAM - XX Eagle Transmission XS-1297 12-Speed CassetteSRAM - XX Eagle Transmission XS-1297 12-Speed Cassette
Model Info


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Product Info

The harder you pedal, the better the XX Eagle Transmission XS-1297 12-Speed shifts. Built with a full X-Sync design that's engineered to be interdependent on other Eagle components, the XX features improved gear progression 44 and 38 tooth cogs in the low end, and square teeth that last longer and deliver more precise shifting.

Product Details


Hardened Tool Steel Machined X-Dome Design for The Cluster

Stamped Steel 38T and 44Tcogs Are Pinned to The Lighter Weight Aluminum 12th Gear (Spider Cog)


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.

12-Speeds10 / 12 / 14 / 16 / 18 / 21 / 24 / 28 / 32 / 38 / 44 / 52

520% Gear RangeThe 52 tooth cog steps down with improved gear progression with 44 and 38 tooth cogs in the low end (compared to the Eagle drivetrain 10-52-tooth cassette)

X-Sync ChainringSRAM X-SYNC 1x chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain easier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud clearing recesses for the inner chain links and rollers.

Optimized Gear Steps on Low End

Setup Cog for Fool-Proof Set Up

Speed12s T-Type


XD™ Driver BodyAllows the use of a 10-tooth small cog and provides an improved interface with the cassette.

55mm chainline Compatibility for More Moderate Chain Angle, Longer Wear and Greater Precision

Compatible with All Eagle™ Drivetrain Systems


  • Material: Aluminum, Steel
  • Drivetrain Speed: 12-Speed
  • Biking Type: Mountain More 
  • Warranty: 2 Years
Size 10-52t
Weight (g) 385

Other Notes

SRAM products can only be shipped within the United States



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