Evil is riding an Aermachhi badged Harly Davidson Sprint, either 250cc or 350cc. In the early 60s HD bought a percentage of Italian motorcycle manufacturer Aermacchi in order to have a range of small motorcycle to compete against the onslaught of small bikes from Japan. Harley would take their bikes and rebadge them as Harley Davidsons. My first street bike was a 1965 Aermacchi M50 badged Harley.
Fun fact Aermacchi went on to become Cagiva and eventually MV Augusta
Gosh the music and film style. So 70's.