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SRAM GX 1X11 Speed Rear Derailleur

Item #: RD212A01
USD$92.99 SAVE 19% USD$115.00 msrp
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SRAM GX 1X11 Speed Rear Derailleur

SRAM GX 1x11

Ride Your Way, Far And Wide

For every bike, there’s a rider. A rider who builds it. A rider who knows it. A rider who’s always ready to take the bike somewhere new. Introducing GX, the drivetrain for people who love to ride without restraint. From beginner to expert, GX delivers personalized gear choices that take you as far and wide as you want to go. Engineered in Germany with 1x and 2x options, SRAM GX brings the power of riding to everyone, everywhere.

GX 1x11 X-Horizon™ Rear Derailleur

The SRAM GX X-HORIZON™ rear derailleur is engineered for smooth, reliable shifting action-from the larger upper pulley offset to the 12-tooth X-SYNC™ pulley wheels. By eliminating unwanted chain movement, X-HORIZON™ shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCK™ technology, wheel removal and installation are easier than ever.

Features:

  • X-HORIZON™ design reduces shift force, ghost shifting and chain slap
  • 12-tooth X-SYNC™ pulley wheels
  • Large upper pulley offset automatically adjusts chain gap
  • Sealed cartridge bearings
  • Aluminum cage
  • Colors: Black, Red
  • Technologies: X-HORIZON™, X-ACTUATION™, X-SYNC™, ROLLER BEARING CLUTCH™, CAGE LOCK™
  • Weight: 265g
4.8 / 5.0
27 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
21
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SRAM GX RD
This replaced X0 11speed that was much lighter, but was killed in a rock attack. it shifts 90% as well as the X0 for fraction of the cost. Added GX 11speed cassette too, and it has worked fine for a month
. for the $$ you cannot go wrong.

PROS: Attractive Design, Durable, Excellent Shifting, Easy To Install
August 24, 2015
Location:
Lake Tahoe, NV
Excellent Derailleur at a great price
I upgraded my fatbike from 1x10 (X9 shifter and derailleur) using the GX 1x11 rear derailleur, X1 Shifter, M8000 XT 11-42 cassette, and PCX1 chain. Installation was straight forward, and shifting is butter smooth across all 11 including the jump from 37-42 under power. A great set-up for those wanting 11sp. The derailleur set up very easily and shifting is easily on par with my old X9 stuff if not better, just be sure to pay attention to the cable routing at the derailleur- it is not tricky just particular in how it goes.

PROS: Attractive Design, Easy To Install, Easy setup

BEST USES: Mountain Biking, Upgrade
August 24, 2015
Location:
Petrolia, PA
Easy to install and quality feel. Preforms and feels like my xo1 group set and a lot more affordable.
April 28, 2017
Purchased
2 months ago
Location:
Whitefish montana
Great value
Super fast shipping.

PROS: Lightweight
September 12, 2016
Location:
Cedar Hills
Shifts Like Butter
Jenson USA rules.
September 7, 2016
Location:
Centennial, Colorado
Great Upgrade to 1x11
Drop in replacement for my SRAM x9 9-speed. Paired this with the X1 shifter and Shimano XT 1x11 cassette (both on sale at Jenson) and converted my 2x9 to 1x11 in a couple of hours. Super quiet (thanks to the clutch), smooth shifting, and far less clutter on the bike.

PROS: Easy To Install, Attractive Design

BEST USES: Upgrade, Mountain Biking
October 3, 2015
Location:
San Diego, CA
Top-level performance
For the type of riding I do, a rear derailleur is a consumable item. So shelling out for a top-of-the-line product does not make sense. After two rides it already had gouges taken out of it, on a couple of occasions I could hear it smacking into rocks that my tires were kicking up. But despite the abuse it continues to perform without flaw.

PROS: Durable
September 19, 2016
Location:
Seattle, WA
Great 11 sp derailleur for the price!
Great derailleur, works just as well as the other more expensive 1x options and costs a fraction of the price

PROS: Durable, Lightweight
October 16, 2016
Location:
santa barbara, ca
Good mid level component
I installed tjis on my new Fat Bike.
It has been working very well, especially since it has seen lots of snow and cold. The 1x drivetrain is so goid, it is nice to have a less expensive level of componentry available to us.
This GX level with the GX cassette is noticably less crisp than my XX1 and XO1 combinations on my other bikes, but it is in no way bad. It is still better than most other 2x or 3x drivetrains, and costs much less.
Very good value!

PROS: Easy To Install
February 24, 2016
Location:
Calgary, AB
Shifts smooth
Used this to replace my broken sram x01 derailleur. The Gx is 100 dollars less with only a 10g weight penalty. So far the GX performs identically to my x01.

PROS: Durable, Lightweight
October 12, 2016
Location:
Loma Linda

Q & A

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Browse 4 questions Browse 4 questions and 9 answers
I'm planning to move on a 1x system, but eventully (some long and steep rides) I would like to change to my 2x crank set, Is this posible with the GX 1X11 derailleur?
Jacob O on Feb 1, 2017
BEST ANSWER: The GX 1x11 derailleur can only be used with a 1x11 crankset. SRAM offers a 2x11 drivetrain but that uses a different 2x11 rear derailleur. There's no need to switch back to a 2x for long rides and steep climbs. By using a cassette such as the e*thirteen TRSr 9-46t, you can replace your 2x with a 1x that provides the same gearing range needed for those long rides and steep climbs.
this derailleur can be run with rival 1X11, yes?
A shopper on Jun 1, 2017
BEST ANSWER: No. The road and mountain group sets are not interchangeable.
What is the maximum cog size/range that this derailleur will work with?
A shopper on Mar 18, 2017
BEST ANSWER: I had the same question, so I looked on SRAM's site. The spec says 42. Coincidentally that is also the meaning of the universe.
hey,
since i don't want to spend another $100 for the XG system, I'm wondering how would this work with a PG1130 cassette? or even with a shimano CS-M8000? thanks! (I tried looking for reviews but didn't get a proper answer)
Matt on May 16, 2016
BEST ANSWER: since they're both 11 spd. cassettes, and the GX is an 11-spd. derailleur, I see no reason why the GX wouldn't work.

It's only when you mix shifters with derailleurs of different brands you can get into trouble as Sram, Shimano have different cable pull rates. I'd worry about what shifter you are using to pull the GX derailleur. If it is a Shimano shifter shifter it might not work.

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.