The machine’s provenance has been established by three signed letters of authenticity: one from the National Motorcycle Museum; a letter from Peter Fonda, and a signed letter of authenticity from Dan Haggerty.
Dan Haggerty took care of the machines during filming. You may recognize the name; he was the guy who played Grizzly Adams in the movie of the same name.
The stars-and-stripes-themed Panhead chopper with chromed hard-tail frame was designed and built by Cliff Vaughs and Ben Hardy. They built two identical versions of the bike so that filming wouldn’t be interrupted by break-downs.