Join Date: Mar 2009
Bikes: 1981 Sekai 1500 Mixte, 1974 Schwinn Le Tour Mixte, 1984 Peugeot Mixte, 1975 Gitane Grand Sport Deluxe Mixte, Motobecane Nomade II Mixte, 2001 Trek 520, 1974 Peugeot UO-18 Mixte
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replaceable hangers are replaceable because when they get damaged, they get replaced without impacting the frame. Also, hangers are usually made of non-steel alloys or titanium. These materials are not conducive to bending like steel is. This applies to all non-steel bikes, but especially a carbon one. However, it is possible to bend a allow hanger on a non-steel bike. I just wouldn't recommend it. A new hanger is rarely over $5 retail. What do your Trek tech notes say for this particular Madone?
If you have a brand new hanger that is misaligned, it is either not the proper hanger for the bike or is defective.