Union GH-027 derailleur hanger for Decathlon Rockrider

The Union GH-027 derailleur hanger is an aluminium replacement part for the frames of Decathlon and Rockrider bikes. It secures the derailleur to the frame if the old hanger has bent or broken.

• Designed for Decathlon and Rockrider bikes, so you can quickly tell whether it is the right one
• Cast aluminium, a sturdy replacement to return the derailleur to the correct position
• Screws included in the package, so you do not need to find them separately
• Mounts externally to the frame with 2 mounting screws
• Suitable for a 5 mm quick-release axle; check your frame before ordering

Technical specifications

• Material: Cast aluminium
• Number of mounting screws: 2
• Frame mounting: External
• Step shape: Straight
• Axle diameter: 5 mm (standard quick release)
• Derailleur mount type: Standard
• Package contents: Screws included
• Compatibility (brands): Decathlon, Rockrider