This is a killer bike we picked up. I'm just not sure what it is. The head badge is faded and the only serial number on it is on the chain side of the front downtube. It has Schwinn grips on it, but that means squat really. I want to make a Rat out of it and do some customizing, but not if it's valuable. So far I moved the seat back and the bars forward. Already looks better, but I have much more to do. Any help would be great! Thanks guys!