This is the bike I bought yesterday. I found a site that seems to be pretty good at decoding Schwinn serial numbers but I didn't see a DF. I did see DE and DG. :?: Any help would be greatly appreciated. Look at pic GEDC0526.
http://www.flickr.com/photos/29669348@N03/?saved=1
http://www.flickr.com/photos/29669348@N03/?saved=1