Re: What year is this roadmaster ?
Looks almost identical to the bike I have, or at least the way it was when I started the build. Mine has a serial number and AMF on the frame. Best I can tell mine is a mid 70's bike. I still have that seat and the grips.
The good news is that if it's cheap a China motor will fit right on there with no trouble.
Currently no bike but thinking about starting a new build soon.