The SRAM UDH Is Drivetrain Freedom for Your Bike
Published October 29, 2023 | Updated December 14, 2024
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One of SRAM’s most popular products is the UDH. It’s a Universal Derailleur Hanger that works with almost any mountain bike frame. In fact, it’s the most widely adopted hanger ever made. Also one of the most versatile and parts you can use on your bike. Once you see how easy it is to replace the UDH, you’ll never go back.
A Derailleur Hanger Is a Sacrificial Bike Part
The rear derailleur hanger connects the rear derailleur to the dropout. That’s where the back wheel attaches to the frame. It’s made to bend or break in a crash, protecting the rear derailleur and frame from damage. Because replacing the hanger is much easier and cheaper than having to replace those parts. You have to make sure the derailleur hanger is properly aligned and in good condition so it can do its job. One that’s misaligned or damage will give you shifting problems. It can also harm the rear derailleur or frame – the exact opposite of what it’s supposed to do.
The SRAM UDH Unifies Derailleur Hanger Standards
SRAM launched the UDH in 2019. It’s made of two parts, the hanger itself and the UDH bolt that secures the hanger to the dropout. “Universal” means it works on almost every modern mountain bike. You also need a compatible thru-axle with a specific thread pitch and thread length to secure the back wheel.
SRAM’s new transmission system would be engineered in such a way that it’s specifically designed to function optimally only on bikes equipped with a UDH. This would mean that the system’s components, such as the rear derailleur, would have a particular geometry and mounting system that aligns with the UDH.
Buy SRAM Bike Parts at Our Shop in Scottsdale
Airpark Bike Co is the best place to buy SRAM bike parts. We sell all drivetrains and transmissions from this brand. Along with brakes, power meters and bottom brackets. Pay us a visit to see how SRAM can elevate your MTBing experience. You can buy full bikes, other replacement parts, and riding gear from us, too. Also from top brands. Come see us today!