SRAM GX Eagle 12 Speed Rear Derailleur

SRAM GX Eagle 12 Speed Rear Derailleur

This new GX derailleur not only answers the Eagle™ drivetrain’s need for greater capacity, but it’s also the next evolution of our proven, 1x-specific X-HORIZON™ design. The larger, 14-tooth X-SYNC™ lower pulley allows 10- to 50-tooth cassette, and also adds to Eagle’s overall smooth-pedaling feel. Our new, Type-3 ROLLER BEARING CLUTCH™ features a smoother torque curve for a quieter, more consistent operation and feel. CAGE LOCK™ has been moved back and out of the way, protecting it from trail debris. And a redesigned, robust mounting system further improves the Eagle™ derailleur’s performance and overall durability.


  • SPEEDS - 12s
  • MATERIAL - Aluminum, Steel pulley
  • WEIGHT - 290g
  • COLOURS - Black
  • OUTER CAGE - Aluminum
  • COMPATIBILITY - All levels of Eagle™ drivetrain systems
  • INNER CAGE - Aluminum
  • SPRING - Steel
  • CAGE SIZES - Long
  • MAX TOOTH - 50t
  • HARDWARE Stainless steel, Black


With CAGE LOCK™ technology in the rear derailleur, wheel removal and installation—as well as chain installation—becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place.

ROLLER BEARING CLUTCH™ rear derailleurs deliver maximum drivetrain stability—even through the most punishing terrain. With ROLLER BEARING CLUTCH™ technology, derailleur bounce and chain slap are eliminated without sacrificing precision.

Developed specifically for SRAM 1x™, X-ACTUATION™ keeps shifting sharp and consistent across the entire cassette.

The X-HORIZON™ rear derailleur’s ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears.

SRAM X-SYNC™ 1x chain rings provide the highest level of performance and durability. The SRAM X-SYNC™ tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC™ chain rings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC™ rings are an integral part of the SRAM 1x™ drivetrain.

We offer free shipping on all orders over £20. Shipping on orders under £20 is charged at £1.95. You should expect to receive your order in 2-3 working days. If your order is urgent you can select a faster or next-day delivery option at the checkout. UK orders are posted with Royal Mail, Hermes or Parcelforce. If you have a specific delivery requirement please contact us and we will do our best to accommodate you. For further information please see our Delivery Information page
If you are not completely satisfied with your goods you may return them within 60 days for a full refund or exchange. All items returned must be in 'as new' condition and be complete with their original packaging. Please make sure the packet is packaged well and do not stick anything directly to the item's packaging which could damage it. For further information please see our Returns Information page
Product Features
  • Colour: Black

Item: SRARD1

MPN: 00.7518.109.000

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£80.49 inc VAT
RRP £98.00

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