I have a cannondale 2.8 aluminum frame and I think the rear triangle is bent a little. When I mount the rear tire I can get it centered but after riding a little it always cocks to the left a little.
The tire does not hit the chain stay but it is close, I think it might be the L/R drop out as the drop outs extend about a inch back from where the chain and seat stays meet. Is this something that can be fixed or os bending aluminum a no-no?