Derailleur Hanger 21 is a replacement dropout designed to connect your bicycle's rear derailleur to the frame. It is precision-engineered to ensure compatibility and proper alignment, providing smooth and accurate shifting.

Key features include:
* Material: Lightweight and durable aluminum alloy.
* Compatibility: Designed for specific bike brands and models; fits frames with bolt-on derailleur hangers.
* Shape: Unique profile tailored for optimal performance with designated frame geometries.
* Finish: Polished finish.


Note: Always verify compatibility with your bike frame model and derailleur type before purchase. Additional Details ------------------------------ Product description: Derailleur Hanger 21 is a replacement dropout designed to connect your bicycle's rear derailleur to the frame. It is precision-engineered to ensure compatibility and proper alignment, providing smooth and accurate shifting.

Key features include:
* Material: Lightweight and durable aluminum alloy.
* Compatibility: Designed for specific bike brands and models; fits frames with bolt-on derailleur hangers.
* Shape: Unique profile tailored for optimal performance with designated frame geometries.
* Finish: Polished finish.


Note: Always verify compatibility with your bike frame model and derailleur type before purchase.