I was looking for a beater bike. A friend said I could have this bike. I would like to know what I have before I thought about making any changes to it. Most of the decals have come off, and I have no idea what it is. (Other than a Schwinn obviously). The serial number is unusual from my research. I could not find it on the serial number list on this site. Any information on this bike would be greatly appreciated. Thank you!!!