Okay I have an 3.0 aluminum Cannondale SM500 frame and the rear derailleur hanger is bent inwards. Judging from the attatched pic, does this have a replacable derailleur hanger? My LBS said they had never seen it (they don't sell cannondales) and wouldn't touch it because the aluminum might break. I gently tried to bend it out, but I didn't want to stress the aluminum, and it didn't budge. It also appears to have allen bolts, but they are an odd size, even SAE doesnt fit. this frame is one of those Cannondales with the derailleur hanger positioned a little far out beyon the rear triangle. any tips?