Sram GX Eagle 12V Rear Derailleur Black

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Main Features Sram GX Eagle 12V Rear Derailleur

The SRAM GX Eagle rear derailleur for 12-speed Eagle cassettes with up to 52 teeth is robust and works precisely and smoothly in any situation.

Sram GX Eagle 12V rear derailleur

Improved cage architecture optimizes chain guidance and provides immediate shifting. The rear derailleur was designed for cassettes with 10-52 teeth, but is also unconditionally suitable for cassettes with a gradation of 10-50 teeth.

Specifications:

  • Series: GX Eagle
  • Field of application: Cross Country, All Mountain, Enduro
  • Transmissions: 12 speed
  • Fixation: Standard
  • teeth max. cassette: 52 teeth
  • Compatibility: SRAM MTB 12 speed

Technical data:

  • Outer cage material: Aluminum
  • Inner cage material: Aluminum
  • Material of other components: Steel

Compatibility:

  • - With Eagle cassettes with 10-50 teeth
  • - With Eagle cassettes with 10-52 teeth

Characteristics:

  • - revised cage architecture for optimal chain guidance
  • - direct and crisp gear changes
  • - steel derailleur gear bearing
  • - easy mounting of chain and rear wheel thanks to Cage Lock™
  • - color coordinated with Eagle components

Technologies:

X-Actuation™:
X-Actuation technology, specially developed for single drivetrains, ensures precise and consistent shifting throughout the entire cassette.

Roller Bearing Clutch™:
Roller Bearing Clutch derailleur systems are equipped for rough and demanding terrain. This technology, which is not afraid of surfaces full of roots, stones or rocks, guarantees the stability of the gear system and prevents chain knocks. In this way, the gear system offers maximum driving stability without sacrificing precision or performance.

Cage-Lock™:
Thanks to the derailleur's Cage-Lock technology, mounting the chain, as well as mounting and removing the rear wheel, is almost a matter of course. Simply release chain tension by sliding the derailleur cage forward to lock it.

X-Horizon™:
The parallelogram design of X-Horizon derailleurs limits movement along the horizontal axis, eliminating "Ghost-Shifting" and reducing shifting force. For faster, more precise shifting, the large shift upper roller offset ensures consistent chain clearance in every gear.

X-Sync™:
The X-Sync tooth design is characterized by long, rounded, angled tooth edges with a narrow profile. X-Sync Technology derailleur rollers support chain guidance and are undeterred by dust and mud.

Reference: 00.7518.137.000

Color
Black
00.7518.137.000
2025-09-24

Product Availability

Most of our items are in stock and marked on the product page as "Available. Immediate shipping".

For items with size variations, this information will appear once the appropriate option is selected. If we do not have immediate stock, the estimated delivery time will be shown. We keep this information up to date and work hard to deliver your order as soon as possible. If the item is unavailable, you can subscribe to an alert to be notified once it’s back in stock.

Payment Methods

We accept card payments, PayPal, Klarna, Amazon Pay, among others. Once received and confirmed, we will process your order and begin preparation.

Shipping and Costs

We offer free shipping on most of our orders. For purchases over €100, shipping is free to countries such as Belgium, France, Germany, Luxembourg, the Netherlands, Portugal, and Spain. We do not ship to the Azores, Madeira, the Canary Islands, Reunion Island, or Guernsey..

Returns Policy

We want you to be completely satisfied with your purchase, so you have 30 days to return your order, as long as return conditions are met. You can find more information about exchanges and returns here. For hygiene and safety reasons, returns of unsealed and/or activated electronic products, food items, swimsuits, and wetsuits are not accepted. See details here.

Size Exchanges

For size-specific products, please refer to the size guide on the product page to choose the best fit. If you need a different size upon receipt of your order, you have up to 30 days to request a change. Follow the steps detailed here

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