SRAM GX Eagle Mechanical Rear Derailleur 12-Speed Long Cage 52T Max Lunar Grey

SRAM GX Eagle Mechanical Rear Derailleur 12-Speed Long Cage 52T Lunar Grey

The SRAM GX Eagle rear derailleur delivers precise and dependable mechanical shifting for SRAM 1x12-speed Eagle mountain-bike drivetrains. Its updated long-cage architecture improves chain management while providing the capacity required for wide-range 10-52T cassettes.

This version is backward-compatible with SRAM 10-50T Eagle cassettes, allowing it to serve as either an upgrade or replacement across multiple generations of mechanical Eagle drivetrains. SRAM X-ACTuation maintains a consistent cable-pull ratio for accurate shifting across the cassette.

X-Horizon geometry limits parallelogram movement to the horizontal axis, reducing shift force and unwanted ghost shifting. A Roller Bearing Clutch controls chain movement over rough terrain, while Cage Lock simplifies rear wheel removal and chain installation.

Features

• Cable-operated SRAM GX Eagle mechanical rear derailleur
• Designed for SRAM 1x12-speed Eagle drivetrains
• Compatible with 10-52T Eagle cassettes
• Backward-compatible with 10-50T Eagle cassettes
• Updated long-cage architecture improves chain management
• X-ACTuation cable-pull technology provides consistent shifting
• X-Horizon geometry reduces shift force and unwanted ghost shifting
• Roller Bearing Clutch minimizes chain bounce and chain slap
• Cage Lock creates chain slack for easier wheel removal and installation
• Large upper-pulley offset maintains a consistent chain gap
• Durable aluminum long cage
• Lunar Grey GX Eagle signature finish

Specifications

Included

• SRAM GX Eagle 12-speed mechanical rear derailleur

Please note: This is a conventional cable-operated GX Eagle derailleur. It is not an AXS wireless derailleur and is not compatible with SRAM Eagle Transmission or T-Type Full Mount installation.

A compatible SRAM Eagle 12-speed shifter, chain, cassette, shift cable and housing are required. These components and the Eagle chain-gap adjustment gauge are not included unless specifically pictured.

This is a genuine SRAM OEM component and may be supplied without retail packaging. Please review the listing photographs for the exact included hardware and cosmetic condition.

Professional installation and drivetrain adjustment are recommended. Please confirm cassette size, shifter compatibility, derailleur-hanger condition and chain length before purchasing.