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Specifications

  • System: SRAM GX Eagle Transmission (T-Type)
  • Model ID: GS-GX-E-D1
  • Speed: 12-speed
  • Includes, Crankset: GX Eagle T-Type, 170mm, 32t direct mount chainring, DUB, 55mm chainline
  • Includes, Cassette: XS-1275 T-Type, 10-52t, XD driver body
  • Includes, Rear Derailleur: GX Eagle T-Type, 52t max, Hangerless Full Mount
  • Includes, Chain: GX Eagle T-Type Flattop, 126 links, PowerLock connector
  • Includes, Controller: AXS Pod Controller with Infinity clamp
  • Includes, Power: AXS battery and charger with USB cord
  • Not Included: Bottom bracket, brakes
  • Frame Requirement: UDH standard
  • Shifting: Wireless AXS
  • E-MTB Approved: Yes
  • UPC: 710845892943

FAQ

Does the GX Eagle Transmission groupset include a bottom bracket?

No. The groupset covers the drivetrain itself, so you need to add a T-Type DUB bottom bracket matched to your frame's shell standard and width. The crankset runs a 55mm chainline, so the bottom bracket has to suit that.

Are brakes included in this groupset?

No. This is a drivetrain groupset, not a complete build kit. Brakes, rotors, and a bottom bracket are all separate purchases.

Does my frame need a UDH for Eagle Transmission?

Yes. The Full Mount derailleur attaches around the rear axle in place of a derailleur hanger, so the frame must be built to the Universal Derailleur Hanger standard. A frame with a conventional bolt-on hanger cannot run Transmission.

What freehub body does the cassette need?

The XS-1275 cassette requires an XD driver body, which is the mountain bike standard. It will not fit a Shimano HG freehub, and it is not the XDR road driver used by SRAM's road cassettes.

Can I run this groupset on an e-bike?

Yes. GX Eagle Transmission is E-MTB approved. The T-Type chain uses solid pins built for the extra torque a motor puts through the drivetrain, and cassette mapping is what allows shifting under that load rather than requiring you to back off the power first.

Can I mix these parts with my existing Eagle AXS drivetrain?

No. Eagle Transmission T-Type components work only with other T-Type components. A standard Eagle AXS or mechanical Eagle cassette, chain, or derailleur will not work in this system, which is why the groupset ships as a complete set.

Best For

Trail, enduro, and e-MTB riders on UDH frames making the jump to Eagle Transmission in one go, rather than assembling it piece by piece, and anyone who wants shifting that holds up under full power on a climb.

Questions About This One?

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