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SRAM
GX Eagle 12-Speed Rear Derailleur

3.6666666666666665 out of 5 stars
3 Reviews

Out of Stock

Don't worry though, we have a lot more Mountain Bike Derailleurs in stock than that.

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Why We Like The GX Eagle 12-Speed Rear Derailleur

The SRAM GX Eagle 12-Speed Rear Derailleur harmoniously shifts through all 12 gears of your Eagle drivetrain without noisy chain slap or annoying ghost shifts holding you back on the trail. Borrowing shifting technologies from its pricier XO1 sibling, the GX Eagle 12-Speed Rear Derailleur is a low-cost alternative that retains SRAM's X-Sync 14-tooth lower pulley system, X-Horizon parallelogram design, and Type 3 Roller Bearing Clutch. Best of all, it's fully compatible with Eagle XO1 and XX1 drivetrains, giving you an affordable replacement in case of a catastrophic crash.


Instead of its forged aluminum cage and titanium spring found on the XO1, the GX 12-Speed Rear Derailleur employs a traditional aluminum cage with a steel spring as a cost-conscious alternative without sacrificing durability, albeit with a minor weight penalty. Expanding on SRAM's signature technologies, the X-Sync 14-tooth lower pulley accommodates the larger 10 to 50-tooth cassette found on Eagle. For silent operation, the Type-3 Roller Bearing Clutch eliminates derailleur bounce and chain slap when you're rallying over punishing trails. Also, it packs SRAM's X-Horizon design, which limits horizontal derailleur movement that contributes to ghost shifting, as well as X-Actuation for precise shifts of your 1x drivetrain.


Details

  • Budget-friendly rear derailleur for Eagle drivetrains
  • Compatible with all Eagle 1x12 drivetrains: GX, XO1, XX1
  • Traditional aluminum cage and steel spring maintain durability
  • Type-3 Roller Bearing Clutch eliminates noisy bounce and slap
  • X-Sync 14-tooth lower pulley accommodates larger Eagle cassette
  • X-Horizon design limits horizontal movement that causes ghost shifts
  • X-Actuation makes for quick, precise shifts of your 1x drivetrain
  • Cage lock allows for easier wheel removal and chain install
  • Item #SRM00C7
Material
[cage] aluminum, [pulley, spring] steel
Capacity
52t
Cassette Range
10 - 50t, 10 - 52t
Gearing
12-speed
Compatibility
Eagle GX, Eagle XO1, Eagle XX1
Claimed Weight
10.2oz (290g)
Manufacturer Warranty
2 years
Activity
mountain biking

Overall Rating

3.5 based on 3 ratings

Review Summary

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

Fits True To Size

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5 out of 5 stars

April 15, 2024

GX Eagle

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

Bought this to change my DeVinci Deore bike to grip shift. Love it!

tchrisg1
5 out of 5 stars

November 24, 2022

The best value SRAM derailleur

Familiarity:
I've put it through the wringer

The GX 12 speed derailleur is the workhorse of the SRAM lineup. It offers great shifting performance, at an affordable price. The NX and SX derailleurs leave some to be desired in quality and performance. The X01 derailleur is lighter, but much more expensive. I recommend pairing a GX derailleur, and an X01 shifter. This is the best value for performance.

Matt M