???? What this part is
A derailleur hanger is the small, replaceable piece of metal that connects your rear derailleur to the bike frame. It’s designed to bend or break in a crash to protect your frame.
⚙️ Key details from your description
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Brand: All Wheels Manufacturing
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Material: CNC-machined 6061 aluminum (strong, lightweight, and corrosion-resistant)
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Finish: Black anodized
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Mounting: Uses 1 × M8 chainring bolt (not included)
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OEM replacement for: Cannondale part KF051
???? Compatibility
This is the most important part — “Derailleur Hanger 19” fits specific Cannondale frames only, not all Cannondales.
Typical compatibility (varies by year/model):
- Certain Cannondale road and gravel bikes
- Some older alloy or carbon frames using hanger code KF051
???? You’ll need to confirm:
- Your bike model + year
- Or match visually with your current hanger
- Or check Cannondale’s hanger chart / your frame manual
