The SRAM Universal Derailleur Hanger, also known as UDH, is a revolutionary component in the cycling industry. Designed to optimize shifting performance across all types of bikes, the UDH has become a popular solution for replacing damaged hangers. With its wide adoption, hundreds of bike models now feature the UDH.
The UDH consolidates thousands of hanger options and offers numerous benefits. It protects the derailleur against chain jams by pivoting back and out of the way, while also allowing for slight slipping in the event of impacts. This improves shifting performance and guarantees better alignment, making the UDH compatible with all drivetrains, including MTB and E-MTB drivetrains from various manufacturers such as Shimano, Box, and Sunrace.
In terms of features, the UDH offers unparalleled derailleur protection and perfect alignment. It is designed to rotate rearward in the event of impact, ensuring that the chain is always re-railed back onto the small cog. This makes the UDH a hard-working component that provides peace of mind to riders.
SRAM UDH 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.
SRAM UDH Limitations
However, there are some limitations to the UDH. It is not backwards compatible with current bikes, so riders will still need to have replacement hangers for their existing bikes. Additionally, it is currently limited to mountain bikes and there is no information about whether it will be available for road or gravel riding in the future. Nevertheless, given the popularity and success of the UDH, it is possible that pressure may be put on SRAM to make a modified version available for other types of bikes in the future.
Edit MTB.