The Guazzoni rotary-valve two-stroke engine with reversed exhaust came in many guises, mostly 50cc

The production racer had a six-speed gearbox and could pull up to 15,000 revs.

Cadetti 60 engine size: 37.5 x 45mm

There were also 98cc, 125cc and 150cc engines. A 250cc Gran Turismo was advertised but may not have seen production.Courtesy Stolte's Showroom