T-Type stiffness for your classic SRAM derailleur
Get the solid, dual-sided mounting feel of SRAM Transmission without replacing your drivetrain. UDH-Link turns a classic derailleur on a UDH frame into a rigid, T-Type style setup, anchored to the frame on both sides instead of hanging off a single bolt.
How it works
A standard derailleur hangs from one point and flexes on it. UDH-Link adds a second anchor. One end mounts directly onto the UDH hanger bolt. On the other end, the low-profile through bolt runs through the derailleur’s B-bolt and locks in place with its matching counterpart and flat nut. The result is a closed link between the derailleur and both sides of the frame dropout.
Why you’ll want it
- Stiffer mounting. Tying the derailleur to the frame at two points reduces twisting and flex under load and on rough trail.
- More consistent shifting. A derailleur that stays in line shifts more predictably, lap after lap.
- Keep your drivetrain. Upgrade the mounting, not the whole groupset.
- Built to take abuse. Printed from PC PBT 15 CF, a carbon-fibre reinforced engineering polymer chosen for stiffness, impact toughness and dimensional stability.
Compatibility
- SRAM GX, X0 and XX1 derailleurs (classic, non-Transmission)
- Frames with a UDH (Universal Derailleur Hanger)
- Not needed for SRAM Transmission (T-Type) derailleurs, which already mount directly
In the box
- 1× UDH-Link plate
- 1× through bolt with counterpart and flat nut, with spacer sleeve
Material: PC PBT 15 CF (carbon-fibre reinforced)
Designed and made by RACEMODD


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