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XS-1275 GX Eagle Transmission 12-Speed Cassette

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Why We Like The SRAM XS-1275 GX Eagle Transmission 12-Speed Cassette

Designed for the latest electronic shifting technology, the SRAM XS-1275 GX Eagle Transmission 12-Speed Cassette is apart of SRAM new Transmission series but features a slightly more value-based GX Eagle build. This cassette is a 12-speed, 10-52-tooth cassette that features X-Sync technology for flawless shifting. The X-Sync allows us to shift under load and makes our shifting smoother than ever. The cassette has a redesigned second and third gears and now features a 38 and 44-teeth cogs for less of a jump between gears. Gears 1-8 feature a pindome design and gears 9-12 are a one-piece design for a lighter eight and more durability.


  • 12-speed cassette designed specifically for transmission electronic shifting
  • X-SYNC design allows for more precise shifting and shifts under load
  • 520-percent range with a 10-52-tooth cassette for technical climbs
  • Single-piece mini-cluster for gears 9-12 and Pindome design for gears 1-8
  • Item #SRMD17X
Cog Sizes
10, 12, 14, 16, 18, 21, 24, 28, 32, 38, 44, 52
Cog Material
aluminum, steel
Freehub Type
Manufacturer Part Number
CS-XS-1275-A1, 00.2418.127.000
Claimed Weight
15.69oz (445g)
trail, enduro
Manufacturer Warranty
liimited 2 year

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