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Shop the SRAM GX 1x 11-Speed Long Cage Rear Derailleur. Featuring X-HORIZON™ technology, smooth shifting, and 42T capacity—perfect for MTB trail and enduro riding.
Shop the SRAM GX 1x 11-Speed Long Cage Rear Derailleur. Featuring X-HORIZON™ technology, smooth shifting, and 42T capacity—perfect for MTB trail and enduro riding.
SRAM

SRAM GX 1x 11-Speed Long Cage Rear Mech/Derailleur

£131.00
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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

SRAM GX 1x 11-Speed Long Cage Rear Mech/Derailleur

Brand:SRAM

Code:RDP8081001

SRAM GX 1x 11-Speed Long Cage Rear Derailleur | High-Performance MTB Rear Mech with X-HORIZON™ Technology for Smooth, Reliable Shifting


Upgrade your drivetrain with the SRAM GX 1x 11-Speed Long Cage Rear Derailleur, a durable and precision-engineered mountain bike rear mech designed for consistent, high-performance shifting on demanding trails. Built as a core component of the SRAM 1x™ drivetrain system, this rear derailleur delivers fast, accurate gear changes with reduced chain movement, making it ideal for trail, enduro, and all-mountain riding.

Engineered with advanced X-HORIZON™ technology, the SRAM GX rear derailleur eliminates ghost shifting and chain slap while improving drivetrain efficiency. Whether you're climbing steep terrain or descending at speed, this 11-speed MTB derailleur ensures smooth, dependable performance in all conditions.


X-HORIZON™ Technology for Precision Shifting

The X-HORIZON™ design reduces lateral movement, resulting in faster, more accurate gear shifts while eliminating ghost shifting and minimising chain slap, perfect for aggressive off-road riding.


Optimised Pulley System with X-SYNC™ Wheels

Fitted with 12-tooth X-SYNC™ pulley wheels, this derailleur improves chain retention and drivetrain efficiency, ensuring consistent performance across rough terrain.


Long Cage Design for Wide Gear Range

The long cage rear derailleur supports a wide-range cassette with a maximum 42T capacity, making it ideal for tackling steep climbs and varied terrain.


CAGE LOCK™ Technology for Easy Maintenance

CAGE LOCK™ simplifies wheel removal and installation by locking the derailleur cage in place, making maintenance and repairs quicker and easier.


Durable Aluminium Construction

Built with a strong yet lightweight aluminium cage, the SRAM GX derailleur offers durability for demanding trail conditions without unnecessary weight.


  • Designed for SRAM 1x™ drivetrain systems
  • Smooth, reliable shifting in all trail conditions
  • Reduces chain slap and ghost shifting
  • Easy maintenance with CAGE LOCK™ technology
  • Ideal for mountain biking, trail, and enduro riding
  • Durable construction for long-lasting performance

The SRAM GX Rear Derailleur is perfect for mountain bike upgrades and replacements, trail, enduro, and all-mountain riders, riders using SRAM 11-speed 1x drivetrains, and cyclists seeking reliable, high-performance shifting.

Technical Information
  • Speed:
    11-speed MTB drivetrain
  • Cable Pull Ratio:
    X-Actuation™
  • Cage Type:
    Long cage
  • Maximum Cassette Size:
    42T
  • Pulley Bearings:
    Steel, sealed cartridge bearings
  • Cage Material:
    Aluminium
  • Colour Options:
    Black. Red
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.
Sizing Information
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