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GX Eagle AXS Upgrade Kit

4.666666666666667 out of 5 stars
15 Reviews
Current price: $501.49 Original price: $633.00
21% off



Why We Like The GX Eagle AXS Upgrade Kit

Masters of trickle-down technology, SRAM has impressed us again with the GX Eagle AXS Upgrade Kit. We’re installing this on our bikes right away, ditching the cables and housing that clunk around in our frames all day. Long-awaited, GX AXS Eagle opens the door for a lot more than just dentists to have electronic shifting. GX AXS uses the same proprietary wireless tech as other AXS items, so just like mechanical AXS we'll be able to mix and match the full system.

Ahead of the game, the new GX wireless shifting from SRAM enjoys all the years of testing that X01 and XX1 went through. We’re especially enjoying the crisp feel of the electronic drivetrain, and that every shift feels the same when the element of human error is taken out of the equation. Easy to adjust, the upgrade kit hooks up to the SRAM AXS app instead of having to drag out the toolbox.


  • Trickle-down tech brings Eagle AXS to a lower price point
  • Enjoy precise, silent, and reliable shifting performance
  • Long-lasting alloy design shaves weight without compromise
  • Overload clutch derailleur protects the internal motor from impacts
  • Upgradable buttons on shifter for better ergonomics
  • System is water and dustproof for reliability on the trail
  • Ability to personalized and adjust with the AXS app
  • Upgrade kit includes battery, charger, shifter, and derailleur
  • Item #SRMD13Z
Rear Derailleur
Claimed Weight
[derailluer] 15.1oz (428g), [battery] 0.9oz (25g), [cover] 0.4oz (10g), [shifter] 2.4oz (68g)
Manufacturer Warranty
2 years

Overall Rating

4.5 based on 15 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 2 reviews
4 Stars - 1 reviews
5 Stars - 12 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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4 out of 5 stars

September 23, 2022

Awesome shifting upgrade, bad ergonomics

I've used it several times

This upgrade is totally a game-changer … except for the paddle. SRAM obviously didn’t test this with many riders because everyone I know that has upgraded to AXS has had to buy the redesigned paddle upgrade. They should have included that from the beginning or offered a free upgrade. That’s probably why all new bikes with this system come with the new paddle automatically.

steven s
5 out of 5 stars

May 12, 2022


I've put it through the wringer

Admittedly I am no expert on electronic shifting, this is my first electronic drivetrain. That said, the shifting with AXS is unbelievably smooth. Not only is it quick but you can shift under power (don't recommend doing this anything with any drivetrain) without the worry of a delayed or clunky shift. If you are looking to upgrade your existing Eagle drivetrain consider this upgrade kit. It'll transform your existing drivetrain. Plus your bike will look better with less cables and the robo-shifting sounds awesome.

Dan B
5 out of 5 stars

February 8, 2022

Only 55 grams heavier than mechanical GX

I've used it once or twice and have initial impressions

I replaced my worn mechanical SRAM GX rear derailleur, cable and shifter with this kit. Install was confusing initially but, in the end, easy. I weighed the parts I took off my bike (shifter, cable, tubing, and derailleur), which together totaled 480grams. So this e-shifting setup is only 55g heavier (~1/8th of a pound). So far, so good!


Originally reviewed on

5 out of 5 stars

February 5, 2022

In love, never looking back!

I've used it several times

I am absolutely in love with this setup. The shifting is instant, silent, and super crisp. I always hated my mechanical setup, always having to adjust the cable tension and I could never quite get it right. I felt like me previous setup was always missing shifts. Setup was insanely easy. I followed the instructions, set my limits, did a couple micro adjustments, and it's amazing. Took maybe 30 minutes to install. I'm no drivetrain expert, but I found the setup to be pretty smooth with basic mechanic skills. Very plug and play. It does take a little getting use to the new shifter. I do really like it, it's just a little different ergonomically. Not in a bad way, just a totally different feeling. Took a little tweaking to get right, but now I find myself loving it. I typically just rest my thumb on it comfortably while I ride. It comes with a really nice little multi-tool, I took that along on my first ride and spent a little time adjusting the shifter location. Super easy. The battery is great...rarely have to charge it. I may end up buying a spare just to keep in the car or gear bag, but I don't feel it's really necessary. Might just be nice to have a backup. If you're on the fence, I highly recommend it. If you're tired of your mechanical setup like I was, you'll be stoked on the upgrade.

Kyle C
3 out of 5 stars

February 2, 2022

mixed emotions! :(

I've put it through the wringer

the shifting is instantaneous, crisp and smooth on jeep roads. not so much if you shift under load ( alot slower than shifting with the wired gears when under load) had it since Christmas '21 but the problems for me are the ergonomics. just cant get it to feel comfortable in my thumb. i had it attached to the break lever and it was horrible. used the stand alone clamp and got a little better but still not for a long ride. ordered the paddle kit to see if it gets better my recommendation would be TRY IT BEFORE YO BUY IT.


Originally reviewed on

5 out of 5 stars

January 26, 2022


I've put it through the wringer

So affordable and worth it. Don't think twice....throw your mechanical stuff in the bin and go electronic!

Todd M

Originally reviewed on

5 out of 5 stars

November 18, 2021


I've used it several times
Size Bought:
6' 5"

I was very skeptical at first but man. There is no going back! This thing is amazing!

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Sam H
3 out of 5 stars

August 17, 2021

Great product until it fails

My son bought the AXS and loved everything about it for the FIRST YEAR. In fact, he would have given it similar reviews found on this page. Then, at an enduro at Silver Mountain in Kellog, ID it started to lose connectivity between the shifter and the derailleur. We discovered that the plastic on the battery had worn down so the fit was no longer tight enough to keep connectivity. He was lucky enough to borrow a battery from a fellow rider and finish the enduro. A week later, after purchasing a new battery, he unfortunately snapped his chain during a ride. After purchasing a new chain, we found that the derailleur no longer worked. We took it to our local mechanic who said it was broken and needed to be serviced, but when I called SRAM they said that the AXS is not serviceable. When I told the customer service rep that my kid was really bummed to have worked to pay off the AXS upgrade and then just a little over a year later have to purchase a mechanical derailleur and shifter for another $300, he simply retorted, "biking isn't cheap." I agree it's not cheap. However, maybe SRAM and other developers should consider that when a new product is 3 to 4 times more expensive than the mechanical derailleur, they should build a product with serviceable/replaceable parts. So, be aware that when or if something goes wrong with this system, you just have to buy another one. IF YOU RIDE A LOT, think about the cost of replacing this derailleur every year or two compared to the cost of a mechanical derailleur. We will not buyer another AXS at this price point.

Matt S
5 out of 5 stars

June 10, 2021


I've used it several times

I was lucky enough to grab it when it was in stock. I don?t regret getting rid of the old cable actuated derailleur. Electronic shifting is the future. Very crisp and accurate shifting. Im still on my first charge of battery going 6 hours Of riding. Very easy set up and I?m glad I upgraded.

5 out of 5 stars

June 9, 2021

Beep Boop

I've put it through the wringer

AXS has been the pinnacle technology in cycling for years and it's inevitable trickle-down has been a terribly kept secret. Now at a much more accessible price point, GX Eagle AXS provides the same crisp and reliable shifting as X01 & XX1 for much less. Get yours now before it's gone!

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Josh M

Originally reviewed on