Guide for choosing the correct UDH Adaptor

If you’re unsure of which UDH adaptor you need, use the images below to see the subtle differences between groupsets.

A Tailfin axle adaptor compatibility chart matching various rear derailleur systems, including UDH, GX, and XX Eagle Transmission, with their correct technical hardware.

Universal Derailleur Hanger:

The original part has ‘UDH’ printed on it and this is also used on bikes with Shimano groupsets

Use with the Universal Thru Axle

 

Transmission GX:

Also required for Force XPLR 13-spd, Rival XPLR 13-spd, Eagle 90, Eagle 70 & S1000

Use with the Universal Thru Axle only

 

Transmission XX/XO:

Also required for Red XPLR 13-spd

Use with the Universal Thru Axle only

 

Still unsure? Get in touch hello@tailfin.cc