SRAM GX AXS Electronic Drivetrain

Wade Morgan | Thu 25th Mar 2021 08:17

With the launch of SRAM GX AXS components today, we take a look at some of the key features of this exciting new range.

SRAM drew back the curtains on their EAGLE XX1 AXS (said “Access”) wireless groupset on 6th of Feb 2019, a groundbreaking and market-leading wireless groupset that turned heads, not only for its lack of cables but also its price tag! Even XX1 AXS’s little brother, XO1 AXS, did little to stop the price induced eye-watering, although punters were stoked to see some trickle-down of the technology, and truth be told it was more accessible than the upper-end XX1, but still not quite mass-market accessible.

Fast forward a couple of years and here we are today, as SRAM launch GX AXS, all the tech of the higher-end editions, in a somewhat more budget-friendly guise. Take a read below and learn why GX could be the new go-to as an upgrade for the core mountain bikers among us.

With controller cross-compatibility across the AXS ranges (including RED/ road) the possibilities are pretty endless when it comes to customising your bikes, be they MTB, or road.


The day in, day out Eagle ecosystem hero is now available with AXS. New for 2021, the GX AXS upgrade kit is your entry point into wireless drivetrain simplicity. Compatible with any of our Eagle ecosystem cassettes and crank arms, the upgrade kit allows you to experience AXS without needing to buy an entire groupset provided you already are using Eagle products. No matter if you are looking to upgrade your ride, or looking for great value replacement parts, look no further than the GX AXS upgrade kit.

What is included in the GX Eagle AXS uprade kit?

  • Derailleur
  • Controller
  • MatchMaker
  • Charger/cord
  • SRAM Battery
  • Battery cover
  • Chain gap tool
Shop GX AXS Upgrade Kit
The new SRAM GX AXS rear derailleur


Riders want a derailleur that shifts on command, whether under climbing load or sprinting to the stage finish. The GX Eagle AXS derailleur gets it done with everything you have come to expect from our AXS connect components. The GX Eagle AXS derailleur is smart enough to protect itself thanks to its incredibly resilient Overload Clutch. Engineered with a variety of rider preferences in mind, it is compatible with our new expanded range 10-52T cassette as well as our 10-50T cassette. Showcasing its lineage from the proven GX Eagle mechanical line, the GX Eagle AXS derailleur is there for one thing— to do the job.

  • AXS enabled componentry software
  • that makes it possible to both program and personalize new SRAM and RockShox components with Eagle technology
  • Overload Clutch protection
  • Finished with the GX Eagle colorway
  • Battery sold separately


Simplicity and performance made for all-day adventures. The pure shifting performance of Eagle AXS is now available with GX. Shift under load, over the roughest terrain, uphill, without changing your grip on the bar. GX Eagle AXS changes your level of control on the bike when you’re under pressure and pushing hard. More than that, it changes your relationship with the bike. No cable, housing or wires to manage opened up design and engineering possibilities with the GX Eagle AXS controller. Featuring the proven ergonomic touchpoints that make shifting effortless, they are customizable to your preferences, allowing you to choose which button does what through the AXS App.

  • Compatible with MatchMaker X
  • Eagle technology
  • Customize in-board and outboard shift options
  • Pairs with all derailleurs in the Eagle AXS ecosystem
  • AXS enabled componentry softwarethat makes it possible to bothprogram and personalize new SRAM and RockShox components
  • The system is completely water and dustproof to IP69K


The AXS battery cover is a light-weight cowling designed to protect the battery while installed on the derailleur. The AXS battery cover fits all AXS mountain bike derailleurs.

What are the main benefits and key features of GX Eagle AXS?

  • Wireless electronic shifting with engineered hardware for a new ergonomic experience based on touching a button rather than pushing a lever.
  • Faster, more consistent shifts. Letting you shift when you want, under load, without ever having to plan around terrain.
  • Gathering useful data, telling you how many shifts have been made, how frequently each cog is being used, helping you make smarter choices on chainring size, and more.
  • Eagle is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle drivetrains are used as a complete ecosystem.

Can I fit SRAM GX Eagle AXS to any mountain bike and what are the compatibility requirements for GX Eagle AXS?

All current bikes and frames compatible with Eagle today will be compatible with GX Eagle AXS. GX Eagle AXS requires an XD driver body for cassette installation, just like the majority of our current 1x drivetrains. GX Eagle AXS cranksets use SRAM DUB bottom brackets, compatible with almost all current BB standards.

Are RED eTap AXS shift levers compatible with GX Eagle AXS rear derailleurs?

Yes. All AXS components can connect to one another. You can use SRAM RED eTap AXS shift levers to build a drop bar bike with a GX Eagle AXS drivetrain. The GX Eagle AXS drivetrain is also compatible with the road BlipBox and control buttons.

Shop GX AXS Upgrade Kit

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