Yeah, big difference. This frame is thick, and has been painted like this for quite a while, according to my friend Gary, and no rust has returned. He had it media blasted and he painted it. Pretty sure it is a Schwinn, the Rollfast had a thin frame, weighs a lot less, and is Swiss cheesed with pinholes. So the cantilever frame is now, DEAD METAL.Wow! Cool frame, but that is a lot of pitting! Are you sure it is an improvement over the other frame?
Not knocking it, just want the best result for you...
Luke.
Carl.