X-LAB Universal Derailleur Hanger (UDH) | AD8, AD9, RT9, GT8, ST5+ & SP5+
X-LAB Universal Derailleur Hanger (UDH)
Protect your drivetrain and restore factory shifting performance with the genuine X-LAB Universal Derailleur Hanger.
The X-LAB Universal Derailleur Hanger (UDH) is the OEM replacement hanger for multiple X-LAB road, gravel, and electric bicycle platforms. Precision-machined from 6061 aluminum, it is designed to protect both the frame and rear derailleur by acting as a sacrificial component during impacts while maintaining accurate derailleur alignment for crisp shifting.
Compatible with the AD8, AD9, RT9, GT8, ST5+, and SP5+, this hanger uses the industry-standard Universal Derailleur Hanger (UDH) interface, making replacement easier while supporting today's latest drivetrain systems.
Whether you've bent your hanger in a crash or simply want a spare in your toolbox, this genuine X-LAB replacement restores factory performance and helps keep you riding.
Key Features
- Genuine X-LAB OEM replacement derailleur hanger
- Compatible with multiple X-LAB bicycle platforms
- Universal Derailleur Hanger (UDH) design
- Precision CNC-machined from lightweight 6061 aluminum
- Designed to absorb impacts and protect your frame
- Restores accurate derailleur alignment and shifting
- Easy replacement using factory mounting hardware
Compatible Models
- X-LAB AD8
- X-LAB AD9
- X-LAB RT9
- X-LAB GT8
- X-LAB ST5+
- X-LAB SP5+
Technical Specifications
- Brand: X-LAB
- Component: Rear Derailleur Hanger
- Standard: Universal Derailleur Hanger (UDH)
- Material: CNC-machined 6061 Aluminum
- Thread Specification: M12 × P1.5
- Compatible Models: AD8, AD9, RT9, GT8, ST5+, SP5+
- Manufacturer Part Number: 8040-15998
Compatible Drivetrains
- Shimano Mechanical
- Shimano Di2
- SRAM Mechanical
- SRAM AXS Electronic
- SRAM Transmission (UDH compatible)
- Other UDH-compatible rear derailleur systems
Why Replace a Derailleur Hanger?
- Restores precise shifting after a crash or impact
- Protects your frame from expensive damage
- Prevents poor shifting caused by a bent hanger
- Easy and inexpensive insurance for long rides and race travel
- OEM fit ensures factory-level drivetrain performance
Before You Buy
- Fits only compatible X-LAB models listed above.
- Uses the Universal Derailleur Hanger (UDH) standard.
- Always inspect your derailleur after a crash or bent hanger.
- Professional derailleur alignment is recommended after installation.
The X-LAB Universal Derailleur Hanger is the genuine replacement component designed to restore precise shifting while protecting your investment. Whether you're riding road, gravel, or electric, carrying a spare derailleur hanger is one of the smartest accessories every cyclist should own.