The 1975 Harley-Davidson RR 350 motorcycle was made in Italy. It featured a liquid cooled, parallel twin two stroke engine. The ignition was electronic. The engine was rated at 60 b.h.p. The displacement was 347cc based upon a bore and stroke of 64 X 54 mm. Fuel was supplied via two Mikuni carburetor. Getting the power to the ground was by a six speed transmission. The suspension featured front Ceriani telescopic forks with twin shocks in the rear. Braking was provided by front Scarab double discs and rear drum. The motorcycle weighed in at 220 pounds. Top speed for the bike was 155 m.p.h.
According to the museum's fact sheet "Production road racer built by Aermacchi, the Italian factory being a division of the A.M.F. Harley Davidson group. These machines were similar in design and performance to the Yamaha TZ twins and were successful in national events. Harley Davidson imported a number of 250's to compete in AMA road races, but the 350 is virtually unknown here."