SRAM GX 1X11
GX 1X11
SRAM

SRAM GX 1X11

In Stock

SRAM GX 1X11 is a durable, precision 11-speed MTB rear derailleur built for 1x drivetrains. X-HORIZON and Type 2.1 clutch deliver stable shifting and confident chain retention on rough trails.

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Available Options

Option Price Availability
SRAM, GX 1X11, Rear derailleur, 1X11sp., Long cage, Black — In Stock
SRAM, GX 1X11, Rear derailleur, 1X11sp., Long cage, Red — Out of Stock

Product Details

Overview & Technology

SRAM GX 1X11 brings proven SRAM technologies to a mid-level, trail-ready rear derailleur. It pairs X-ACTUATION for precise 11-speed indexing with the X-HORIZON derailleur geometry to reduce shift force and virtually eliminate ghost shifting. The Type 2.1 system adds a ROLLER BEARING CLUTCH for consistent chain tension and a CAGE LOCK for simplified wheel removal and transport. The unit uses 12-tooth X-SYNC™ pulley wheels with sealed bearings and a large upper pulley offset that self-adjusts chain gap for tighter, more accurate shifts under load. Finished in black (also available in red), the long cage design accommodates up to a 42T largest cog while keeping a compact, durable package at about 265g.

Key Features & Benefits

Robust materials and smart construction: GX 1X11 combines an aluminum outer plate with a steel/forged alloy inner link and a long plated steel cage to balance weight and durability. The roller bearing clutch and sealed pulley bearings mean fewer service intervals and more reliable performance when the trail gets rough. Real-world benefits include crisper, more consistent shifts under power, dramatically reduced chain bounce on technical sections, and the CAGE LOCK that makes wheel swaps and chain tensioning faster on the trail or in the workshop. • Type 2.1 clutch keeps chain on the ring during hits and drops • X-HORIZON geometry reduces ghost shifts and lowers shift effort • X-SYNC 12T pulley wheels improve chain control and efficiency

Fit, Compatibility & Installation

The GX 1X11 is a standard hanger-mount rear derailleur designed for SRAM 11-speed XX/X01/GX 1x systems using X-ACTUATION. It supports cassettes with a smallest cog down to 10T and a largest cog up to 42T, and its long cage gives the chain capacity needed for wide-range 1x cassettes. Mount type: standard derailleur hanger; weight: approximately 265g. Installation notes: use a properly aligned hanger and correct B-tension to set the upper pulley chain gap; the CAGE LOCK simplifies wheel removal and chain routing during installation. Compatible with SRAM 11-speed shifters and chains; not intended for Shimano 11-speed indexing without appropriate matching components.

Who This Derailleur Is For

The SRAM GX 1X11 is built for mountain bikers who want reliable, trail-proven shifting without the premium price of top-tier models. It's ideal for enduro-minded trail riders, bikepackers using 1x drivetrains, and any MTB rider running an 11-speed wide-range cassette up to 42T. If you value low maintenance, strong chain retention and stable shifting across rough terrain, the GX 1X11 is a high-value upgrade or replacement derailleur that balances durability and performance for real-world mountain riding.

Key Features

  • ✓ X-ACTUATION optimized for precise and dependable 11-speed shifts
  • ✓ X-HORIZON geometry reduces shift force and virtually eliminates ghost shifting
  • ✓ Type 2.1 ROLLER BEARING CLUTCH improves chain retention on rough terrain
  • ✓ CAGE LOCK makes wheel removal and chain routing fast and simple
  • ✓ 12-tooth X-SYNC™ pulley wheels with sealed bearings for long service life
  • ✓ Long cage supports up to a 42T largest cog for wide-range cassettes
  • ✓ Approximate weight 265g balances durability with trail-worthy mass

Specifications

Maximum Cog 42T
Minimum Cog 10T
Primary Color Black
Cage Long
RD Weight 265g
Speed 11
Mount Standard

Product Identifiers

Vendor Item # 00.7518.081.000
UPC 710845770203

Frequently Asked Questions

Is the GX 1X11 compatible with my SRAM 11-speed shifter?

Yes. The GX 1X11 uses SRAM's X-ACTUATION and is intended for SRAM 11-speed 1x shifters. For best performance match it with SRAM 11-speed shifters and chain designed for X-ACTUATION indexing.

What cassette range does this derailleur support?

The derailleur accepts cassettes with a smallest cog of 10T and a largest cog up to 42T with the long cage. Ensure correct B-tension and chain length when using wide-range cassettes to maintain proper pulley-to-cog gap.

Can I use this derailleur on Shimano drivetrains?

SRAM X-ACTUATION is optimized for SRAM shifters; mixing SRAM 11-speed derailleurs with Shimano shifters typically results in inconsistent indexing. For reliable shifting, pair GX 1X11 with SRAM 11-speed components.

How do I service the pulleys and clutch?

Pulley wheels use sealed bearings—replacement is straightforward when worn. The roller bearing clutch is serviceable but designed for low maintenance; consult SRAM tech docs for specific teardown and grease recommendations, or have a shop handle clutch service if unsure.

Does the CAGE LOCK make wheel removal easier?

Yes. The CAGE LOCK engages the cage in an open position to relieve chain tension, simplifying rear wheel removal and reinstallation. It's a practical feature for quick trail-side wheel swaps and transportation.

What is the weight and color availability?

This derailleur weighs approximately 265g and comes in black and red variants. Weight may vary slightly between finishes.

Buying Guide

When choosing a rear derailleur for a 1x mountain drivetrain, prioritize compatibility, cage length, clutch presence, and durability. For wide-range 11-speed cassettes (up to 42T) choose a long-cage derailleur like the GX 1X11; the Type 2.1 clutch provides essential chain retention for technical trails. Also consider your priorities: lighter derailleurs shave grams but may cost more; robust mid-level units like SRAM GX balance weight, serviceability, and cost—making them an excellent choice for most trail and enduro riders who want dependable shifting without premium pricing.

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