Wheels Manufacturing Wheels Manufacturing Universal Derailleur Hanger - 487, For Trek ABP MTB Frames designed to accept SRAM UDH, Black - The Devil's Gear
SRAM Universal Derailleur Hanger UDH by pinspanner | Download free STL model | Printables.com
SRAM's universal hanger concept could make coaxial mounted (hangerless) derailleurs a thing (again) - Bikerumor
Wheels Manufacturing Wheels Manufacturing Universal Derailleur Hanger - 404-02, For Frames designed to accept SRAM UDH, Black - Aberdeen Bike | Chelsea
VIDEO - Forcellino Sram UDH: come funziona e perché è utile