Factor Rear Derailleur Hanger

Why Does Every Factor Rider Need a Spare Derailleur Hanger? The Factor Rear Derailleur Hanger is a precision-machined replacement component for Factor's premium road and gravel lineup, including the O2 VAM, Ostro, and One models, designed to restore your drivetrain alignment and shifting performance after a crash or impact event. Machined from aerospace-grade 6061 or 7075-T6 aluminum, each hanger is CNC-milled to exact tolerances so derailleur alignment stays true and gear changes remain crisp and consistent across every cog. Available in two versions, the RD-H4 covers disc brake frames and the RD-H6 serves riders running direct-mount Shimano setups. A derailleur hanger is the sacrificial component in your drivetrain system, designed to absorb impact and bend before the frame or derailleur does. Keeping a spare on hand means a crash at mile 20 does not end your ride at mile 21. The frame-specific engineering of each Factor hanger ensures proper load distribution and precise derailleur positioning that a universal hanger cannot replicate. Order the correct version for your frame using the variant selector and keep one in your kit bag, because you will want it before you expect to need it.