SRAM

SRAM GX 11-Speed Rear Derailleur – Long Cage Black 1x

RD6129

$123.00 Save $-123.00
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Free Shipping on Orders over $75
Only 56 in stock!

GX derailleurs share the key features of higher-priced models and are available for 1x11 and 2x11 drive trains.

  • For 2x11 speed drivetrains
  • Medium cage is for use on hardtail bikes
  • Type 3 roller bearing clutch delivers maximum drivetrain stability, even through the most punishing terrain
  • X-ACTUATION technology eliminates slop and shifting variation
  • Cage Lock mechanism for easy wheel changes
  • Aluminum cage and steel pulleys

SRAM GX Rear Derailleur - 11 Speed, Long Cage, Black, 2x, With Clutch 

  • Color: Black
  • Largest Cog: 42
  • Rear Derailleur Mount Type: 10x1 Standard
  • Chain Wrap Capacity (teeth): 46
  • Cage Length: Long
  • Rear Der/Shifter Compatibility: SRAM X-Actuation
  • Drivetrain Speeds: 11
  • Weight: 289

SRAM GX Rear Derailleur - 11 Speed, Medium Cage, Black, 2x, With Clutch 

  • Color: Black
  • Largest Cog: 42
  • Rear Derailleur Mount Type: 10x1 Standard
  • Chain Wrap Capacity (teeth): 46
  • Cage Length: Medium
  • Rear Der/Shifter Compatibility: SRAM X-Actuation
  • Drivetrain Speeds: 11
  • Weight: 286

SRAM GX Rear Derailleur - 11 Speed, Long Cage, Red, 1x, With Clutch 

  • Color: Red
  • Largest Cog: 42
  • Rear Derailleur Mount Type: 10x1 Standard
  • Chain Wrap Capacity (teeth): 32
  • Cage Length: Long
  • Rear Der/Shifter Compatibility: SRAM X-Actuation
  • Drivetrain Speeds: 11
  • Weight: 265

SRAM GX Rear Derailleur - 11 Speed, Long Cage, Black, 1x, With Clutch 

  • Color: Black
  • Largest Cog: 42
  • Rear Derailleur Mount Type: 10x1 Standard
  • Chain Wrap Capacity (teeth): 32
  • Cage Length: Long
  • Rear Der/Shifter Compatibility: SRAM X-Actuation
  • Drivetrain Speeds: 11
  • Weight: 256

FREE standard shipping on orders over $75 excluding Used Bikes.
Any order over $75 qualifies for free standard shipping excluding Alaska, Hawaii, US Virgin Islands, Puerto Rico, Guam, military and air force bases.

We do not ship to PO Boxes.

Delivers in 2-9 business days depending on the order.

Possible Delay in Order Processing

Below are the current order-processing service levels from our distribution centers for orders received prior to Last Call deadlines:

· MN, CO, PA, NV: Same day, possible 1-day delay

Shipping providers are also experiencing longer shipping times. Please use the tracking information on your order for the most up-to-date information. Some out-of-stock product ETA dates are inaccurate due shipping delays.

U.S. Last Call Times

  • Local courier, Will Call and international shipments: 2 PM Central
  • UPS Regional Ground and Early OnTrac service from Reno: 3 PM Central
  • UPS and FedEx next day air shipments, and Spee-Dee, Golden State Overnight, and standard OnTrac regional shipments: 4 PM Central
  • UPS Ground: 6 PM Central
  • Fed Ex Ground:
    • MN, CO, NV: 6 PM Central
    • PA: 5 PM Central
  • USPS* and LTL** Ground: 6 PM Central

*USPS orders placed before 12 PM will ship same day. Orders placed after 12 PM will ship the following day
**LTL orders placed before 12 PM Central will ship same day. Orders placed after 12 PM Central will ship the following day

Order Cancellation

If you need to cancel your order, please email us at shop@unlimitedbiking.com, call us at 212-749-4444 or use the live chat on our site. We do our best to accommodate cancellation requests, but we do not guarantee we will be able to cancel your order if it has been processed through our warehouse. Your understanding of this matter is appreciated.

Pricing Policy

The prices on our website are set to active pricing. This means we are always giving you the best price possible. If we are able to lower the price because of product or shipping discounts, we will receive it then we will pass that onto you. Prices may fluctuate and we do not offer a Price Guarantee so if the price changes after you have made a purchase there will not be a refund issued. The purchase price is accurate for the time you placed the order.

Return Policy

Is your order not what you were expecting? Please contact us so we can help you with your return. 

We have a 30-day return policy for orders within the US (lower 48 States only). We offer refunds on returned items that are brand new and in their undamaged, original packaging. Customers are responsible for the cost of return shipping. A pre-paid return label will be provided for you, and the cost of the label will be deducted from your refund once we process the return. Damaged, installed, and used items as well as those without original packaging are not eligible for returns. Please note that there are no refunds or exchanges for any pre-built bikes or used bikes sold.

If you need to return your order, please email us at shop@unlimitedbiking.com, call us at 212-749-4444 or use the live chat on our site.

*Please allow up to 2-3 business days for us to process your return*

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately. Please refer to the Return Form for the product you do not need and send it in for a full refund.

Warranty

Unlimited Biking is an authorized dealer for everything we sell. That means all new items you buy from us get the full manufacturer's warranty. If you need to have an issue considered for warranty, contact us through email, chat, or phone (212-749-4444) and our team will go straight to work to find you the easiest and fastest solution. In most cases, your claim will be resolved within 48 hours.

Online Returns
Submit your online return request HERE. Online returns follow our standard policy above.

    SRAM GX 11-Speed Rear Derailleur
    SRAM GX 11-Speed Rear Derailleur
    SRAM GX 11-Speed Rear Derailleur
    SRAM GX 11-Speed Rear Derailleur
    SRAM GX 11-Speed Rear Derailleur
    SRAM GX 11-Speed Rear Derailleur