Nice Bertone Helmet I think this is one of the H-D Cagiva 2 stroke SS-SST range (what were they marketed as in Italy? They were originally built by Aermacchi), somewhere between 125 & 350.
Agree. The naming changed several times for this model: 1975-1978: AMF Harley Davidson, 1978-1980 HD Cagiva, 1980+: Cagiva. By the film release date we have here probably a Harley Davidson (SS/SST).
