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XG-1275 GX Eagle Transmission 12-Speed Cassette

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

Designed for the latest electronic shifting technology, the SRAM XG-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
Claimed Weight
15.69oz (445g)
trail, enduro
Manufacturer Warranty
liimited 2 year