Exact derailleur hanger alignment is crucial to crisp ...
shifting. The Standard MTB Rear Derailleur Hanger is designed to restore specific Giant mountain bikes to full shifting capabilities. Please verify visually that your hanger matches the one pictured.
This is a SRAM UDH (Universal Derailleur Hanger) ...
that is designed to simplify the process of tracking down a hanger for your bike. The UDH aims to be the standard across different brands for compatibility simplicity.