I just noticed a crack about 1/8" long running along the center of one of the welds holding the seat portion of the bike to the main body of the frame. I ride an i-drive so the frame geometry is a little screwy. this is basicly one of three welds that hold my body weight to the frame. I'm 185 lbs and i'm worried about breaking the seat stay right off. If any body can give me some tips short of re-welding i'd appreciate it. I was thinking about using a metal bonding epoxy. Is that a bad idea?