Factor Direct Mount Rear Derailleur (RD) Hanger | Shimano

Direct Mount RD Hanger for Factor Road/TT/Gravel Bikes using Shimano Drivetrain.

Precision machined from 7075-T6 Aluminium.

Only ~18.4g! ~52% lighter than stock (38.4g).

- Increases stiffness compared to the original Shimano pivot structure

- Minimises play from the stock hanger tolerance gap

- Improves shifting precision and responsiveness.

Note: After installation, the rear derailleur Hi, Lo, and B-Limit screws must be adjusted. If you are unfamiliar, please seek a professional bike mechanic for assistance.

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Compatibility

Shimano R Series Rear Derailleurs ONLY

Supported Models:

O2 VAM (2019-2025)
Ostro VAM (2019-2025)
SLiCK Disc (2019-2020)
Ostro VAM Gravel (2021-2025)
HANZO Disc (2022-2025)
LS

Not Compatible:
Allez
Crux 2015, 2016, 2023
2016 and older models.

Frequently Asked Questions

1. Question
Does a stronger rear derailleur hanger damage the chainstays during a fall/crash?

Answer
No, modern bikes nowadays have the thru-axles pass through the rear derailleur hanger. The thru-axle provides extremely high rigidity over the entire area; hence, the hanger will not cause the chain stay to break unless the thru-axle breaks. This is extremely rare and would be a major accident, which I hope we will never experience.