Sorry for the small pictures, but I was wondering what you guys think if my newly acquired ride. It fits me well and it very smooth but I have some problems. The chainringsand or crankset is slightly bent. The lbs took a rubber mallet to it and straightened it out for me, but the chain is dancing in between the front derailer, hitting the walls. This is a pain because I have to adjust it constantly. I am a perfectionist. What should I do with this?