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SRAM GX Type 2.1 10 SPD Rear Derailleur

Item #: RD212A00
From USD$54.99 SAVE 10% USD$61.00 msrp
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SRAM GX Type 2.1 10 SPD Rear Derailleur

SRAM GX 2x10

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 2x10 Rear Derailleur

Leveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION™ technology eliminates slop and shifting variation. ROLLER BEARING CLUTCH™ technology delivers maximum drivetrain stability-even through the most punishing terrain. And with CAGE LOCK™ technology, wheel removal and installation are easier than ever.

Features:

  • EXACT ACTUATION™ for precise and dependable 10-speed performance
  • Cage lengths: Short, Medium and Long
  • Color: Black
  • Technologies: EXACT ACTUATION™, DIRECT ROUTE, ROLLER BEARING CLUTCH™, CAGE LOCK™
  • Weight: 302g (long cage with ROLLER BEARING CLUTCH™)
  • Max Cog Size: 36T
  • Chain Wrap Capacity: Short: 30T, Medium: 35T, Long: 47T
  • Equivalent to previous X9 derailleur
  • 4.6 / 5.0
    42 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    28
    13
    0
    1
    0
    Great clutch derailleur for replacing older models
    I had a SRAM X5 derailleur from 2012 which just exploded due to it hitting branches. I replaced it with this SRAM GX 10-speed and it works flawlessly with the X5 shifter. Now I can take advantage of the clutch and lock on the new offering from SRAM!
    September 5, 2016
    Location:
    Quebec, Canada
    Great derailleur
    Paired this derailleur with a narrow wide chain ring and haven't dropped a chain (I ride dh/freeride/trail). The clutch has more force tensioning the chain than the x9 did. Shifting seems on par with the x9 also, maybe a tad lower in performance but I did do a full drivetrain rebuild so difficult to compare in that aspect.
    October 11, 2016
    Location:
    Ontario
    its the perfect rear derailleur
    the delivery service is so good, no problems with that
    August 25, 2016
    Location:
    São Paulo, Brasil
    A Quality Rear Mech
    Typical Sram shifting. The shifts are snappy and once tuned to perfection (which is a task everyone should know how to do), it will shift with little to no hesitation. I put a short cage version of this on my Yeti 303 RDH (replacing a 9 speed). It really makes a difference on short uphill sections (which occur on the occasional DH trail).
    September 18, 2016
    Location:
    Colorado Springs, CO
    Good price, great performance
    Prompt delivery from Jenson.
    July 13, 2016
    Location:
    Highland, MI
    Perfect for the Price!!!
    This is the best choice for that price. Highly recommended

    PROS: Easy To Install, Looks Durable, Great Compatibility

    BEST USES: Mountain Biking, Upgrade
    December 14, 2015
    Location:
    Mexico
    good quality, what expected
    I used this one to substitute my broken X0, it was already too old. The new capabilities of this one makes easier to take out the wheel. Also is more stiffer so the chain is not jumping around and making those clank clonk clink clonk noises with the stays. Good quality product.

    PROS: Durable, Easy To Install
    January 27, 2016
    Location:
    Dominican Republic
    a winner product , way to go sram !
    Easy to install , fast and accurate shifting action

    PROS: Easy To Install, Lightweight
    December 17, 2015
    Location:
    israel
    Great derailleur
    Super easy to setup and shifts like butter.
    June 21, 2016
    Location:
    Roosevelt, NY
    Nice shifter
    Bought this product to upgrade to 10spd, this shifter with the GX derailleur shifts like butter!!

    Great set up for the cost

    PROS: Easy To Install
    October 22, 2015
    Location:
    St. Cloud MN

    Q & A

    Start typing your question and we'll check if it was already asked and answered. Learn More
    Browse 5 questions Browse 5 questions and 15 answers
    Can this be used for 3x10 with long cage ?
    Lew P on Jan 17, 2017
    BEST ANSWER: Yes, as long as you do not exceed 36 teeth on the cassette large cog and total chain wrap of 47 teeth. I currently use an XX rear derailleur on a road triple. The XX is listed as a 2x like the GX.
    I need to replace my X7 rear derailer. Can I change the X7 RD for the GX without exchanging my shifter? Is this the most comparable derailer to the X7?
    Brad R on Apr 23, 2017
    BEST ANSWER: SRAM 10sp mountain shifters all work with the 10sp derailleurs. I've run X7's and X9's with SRAM shifters and used an X9 with GripShifts before installing the GX. The only difference is the Type II clutch that provides much more chain stability with a 1x10 system which I used.
    Does this GX type 2.1 10-speed work with the 40T sunrace cassette? Having problems with middle cogs but not sure if the Shimano SLX 10-speed shifter I'm using is the problem. It appears that I have the necessary hi/lo deraileur range within the limits.
    James P. on May 9, 2017
    SRAM GX Type 2.1 10 SPD Rear Derailleur
    SRAM GX Type 2.1 10 SPD Rear Derailleur
    Sunrace MX3 10 Speed Cassette
    Sunrace MX3 10 Speed Cassette
    BEST ANSWER: Your shifter is probably the culprit, as it's definitely not compatible. SRAM and Shimano 10-speed systems have a different cable pull ratio. Your best bet is to get a SRAM 10 speed MTB shifter installed, which should work a lot better.
    SRAM GX 2X10 Trigger Shifter
    SRAM GX 2X10 Trigger Shifter
    What's the gear range ? Can it be used on 10 speed 1x drive trains?
    Trail Dog on Jun 3, 2016
    BEST ANSWER: simple answer. yep.

    forum answer:
    http://forums.mtbr.com/beginners-corner/cannondale-trail-sl-rider-seeking-1x10-conversion-1013272.html
    Is this a dedicated 2x10 GX derailleur? If so, what is the difference between 1X10 GX and 2x10 GX besides the length of the cage and possibly length of the B-screw (assuming most 1x users go for a 40-42T big cog, however, I am happily running an 11-36 cassette for now)?
    I am looking for a replacement for SRAM X7 derailleur that came as part of a 2x10 drivetrain that was later converted into 1x10.
    seahog on Apr 15, 2016
    BEST ANSWER: simple answer, yep.

    Forum answer:
    http://forums.mtbr.com/beginners-corner/cannondale-trail-sl-rider-seeking-1x10-conversion-1013272.html

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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.