B-b-b-b-b-b-bicicle Rider
Joined: Apr 2005
Posts: 749
Likes: 5
From: Racine WI
Bikes: 1997, stumpjumper S-works hardtail, Medici, Giant Perigee(track dropouts and fixed gear), Columbia twosome, schwinn twinn, '67 raleigh 5 speed internal hub, Old triumph 3 speed, old BSA 3-speed, schwinn Racer 2spd kickback, Broken raysport criteriu
If it is in fact bent, then you can straighten it. It's not structural, or at least not supporting your weight. But I have found that re-straightened aluminum deraileur hangers tend to re-bend quite easily. They are purposefully made from soft aluminum which bends before the other stuff on your frame and the parts around it, and the re-bending only seems to make it weaker still.
So it may work for a while, but you'll want to get another one anyway.