Earring Union GH-139

All Union derailleur suspensions are 100% identical to the original derailleur suspensions on your bike, as they are made by the same manufacturer.
This ensures the correct strength and stiffness. Don't use anything other than OEM quality derailleur hangers, especially "CNC machined" from "AL-6061 or 7075 aircraft aluminum".
They may be designed too hard and thus damage your frame.
This is why using a genuine Union derailleur hangers is your safest choice!

Product Description:
Product Category: derailleur suspension/exhaust
Application: Trek
Material: aluminium
External fixing with 2 bolts, threaded in derailleur suspension
SB single pack
Manufacturer's Colour: silver