Wheels Manufacturing Derailleur Hanger 277 – CNC Alloy, 2-Bolt Mount, Black
The Wheels Manufacturing Derailleur Hanger 277 is a precision CNC-machined replacement hanger for select Giant and Liv bicycles that use Giant OEM hanger part RE247. It is designed to restore proper derailleur alignment, protect the frame in the event of impact, and improve shifting consistency over many softer OEM hangers.
Key Functional Details
- Replacement derailleur hanger for select Giant and Liv frames using hanger spec #277 / Giant RE247
- CNC machined from 6061 aluminum for strength and consistent alignment
- 2-bolt mounting design
- Black anodized finish for corrosion resistance
- Designed as a replaceable sacrificial part to help protect the frame and derailleur
- Made in the USA
Technical Specifications
| Model | Wheels Manufacturing Hanger 277 |
| OEM Cross Reference | Giant RE247 |
| Material | 6061 Aluminum |
| Mount Type | 2-Bolt Direct Mount |
| Finish | Black Anodized |
| Manufacturing | CNC Machined |
| Country of Origin | USA |
Compatibility & Technical Notes
- Fits select Giant and Liv bicycles that use OEM hanger RE247 / Wheels Mfg 277
- Known fitments listed by Wheels Manufacturing include:
- Giant TCX Advanced
- Giant TCX Advanced Pro (2016+)
- Giant TCX SLR (2017+)
- Liv Brava (2017+)
- Requires exact 2-bolt hanger match to the frame
- Works with standard derailleur mounting from Shimano, SRAM, and similar systems once the correct hanger is matched
- NOT a universal Giant hanger
- NOT confirmed for Giant Talon, Revolt, Anthem, or other Giant models unless they specifically use RE247 / Hanger 277
- Always confirm by part number, bike model/year, or hanger photo before ordering
Service / Ownership Context
Derailleur hangers are one of the most common drivetrain failure points after a crash, tip-over, or transport damage. On the correct Giant or Liv frame, this hanger restores the replaceable dropout interface and gives the derailleur a straight foundation for accurate shifting.
Fit & Use Signals
- Good Fit: Giant and Liv bikes confirmed to use OEM hanger RE247 / Wheels Mfg 277
- Good Fit: Giant TCX and Liv Brava applications listed in manufacturer fitment data
- Not A Fit: Giant bikes without exact RE247 / 277 match
- Not A Fit: Any frame where the hanger shape or bolt pattern differs
- Not A Fit: Universal replacement attempts based only on brand name
This hanger is Giant/Liv-specific, not just “for Giant bikes” in general. The safest way to sell it is by matching Wheels Mfg 277, Giant RE247, or confirming the hanger visually. Even within Giant, hanger specs can change by model and year. Always check hanger alignment after install with a derailleur alignment gauge. Good upsells: spare hanger for race/travel use, derailleur inspection after impact, and hanger alignment service.