Yesterday I bought some old junk bikes, and in the pile was this ugly 26" Schwinn canti frame. The serial numbers start with "AJ" which translates into Jan. ' 73. It appears to have originally been yellow as I found some of the original markings on the yellow paint. These brown forks obviously didn't come on this frame. I already had them with the bearings and races, so I stuck them on. The distance I measured inbetween the dropouts is 4 1/2". Any help in determining what width rims originally came on this bike, or whether it was a fixed gear or not would be appreciated! Thanks, Alan.