My wife got a flat a few months back without telling me. Her solution was fix-a-flat. Also known as Evil in a can. She used it on the tire in the middle of summer, and never went to have the tire looked at. It was holding air just fine but months later the right hand tire would wobble WILDLY at odd speeds, and with no pattern. Little did I know it was filled with lovely green fluid. I found this out when it spilled all over the tire guy while he was taking it of the wheel. She fessed up at that point. Since then the tire is fine but when breaking lightly at lower speeds I get a wobble....a pretty bad one at that. I can skip over it entirely. If i wait a bit longer to break, and then break harder. I'm going to attack it this weekend but I thought maybe some of you guys could point me in the right directions of what to look for.