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XS-1297 XX Eagle Transmission 12-Speed Cassette

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Why We Like The SRAM XS-1297 XX Eagle Transmission 12-Speed Cassette

Built to give us peak shifting performance in the worst conditions imaginable, the SRAM XS-1297 XX Eagle Transmission 12-Speed Cassette shifts better the harder we pedal, thanks to the full X-Sync design. Specifically engineered to optimize the new XX Eagle Transmission drivetrain, the cassette comes into direct contact with our derailleur ensuring perfect alignment and buttery-smooth shifting every time. The 10-52 tooth range gives us a gear for every grade, so we can keep our pedals spinning when the trail seems to go straight up.


  • Wide range 12-speed cassette engineered for SRAM's Eagle Transmission
  • X-Sync design offers precise shifting even under load
  • X-DOME cluster design is lightweight and durable
  • Aluminum 52t gear shaves off extra weight
  • Setup Cog makes installation simple and fool-proof
  • Compatible with modern 55mm chainlines
  • Item #SRMD16Q
Cog Sizes
10 - 52t
Cog Material
[10 - 32t cogs] hardened steel, [38t, 44t cogs] stamped steel, [52t cog] aluminum
Freehub Type
Claimed Weight
12oz (341g)
Manufacturer Warranty
2 years
enduro, trail, cross-country
Manufacturer Part Number