UNION GH-112 CAST – Gear mech derailleur hanger – Trek #303978

Description

To fit the following models

TREK  original part no #303978

Cronus – 2011
Cronus CX Pro – 2012
Cronus CX Ultimate – 2012
Cronus CX Ultimate Frameset – 2012
Ion – 2011-2012
Ion CX – 2012
Ion CX Pro – 2012
Ion CX Pro Frameset – 2012
Madone 5 series – 2011
Madone 6 Series – 2010-2011
Speed Concept – 2010-2011

Please compare your hanger to the picture to ensure the correct fitting