About SRAM AC Universal Derailleur Hanger
The Universal Derailleur Hanger consolidates thousands of hanger options across the industry. It protects your derailleur against chain jams by pivoting back and out of the way, and slips slightly when encountering impacts. It improves shifting performance, guarantees better alignment, and works with all drivetrains. Plus, if you ever need replacement, it will be available everywhere. The UDH. One hard-working hanger.

Features
The Universal Derailleur Hanger – or UDH – consolidates thousands of mountain bike derailleur standards.

It offers unparalleled derailleur protection. And perfect alignment. Guaranteed.

The UDH is designed to rotate rearward in the event of impact and features the ability to “re-rail” the chain back onto the small cog.

The UDH works with all commercially available MTB and E-MTB drivetrains from Shimano to Box to Sunrace.

About SRAM
Founded in 1987, SRAM (an acronym of the 3 founders names, Scott, Ray and Sam) is a privately owned bicycle component manufacturer located in Chicago. They're known for developing many of the inovative technologies used in bikes today including ETAP wireless electric shifting, Grip Shift, dedicated single chain ring drivetrains, narrow wide chainrings and more. Sram also own bicycle component brands Rockshox, Quarq, Zipp and Truvativ.