The Rato RV175 is a 173.9 cc (10.61 cu-in) single-cylinder air-cooled 4-stroke internal combustion general-purpose gasoline engine with vertical shaft,
The Rato RV170 is a 173.2 cc (10.57 cu-in) single-cylinder air-cooled 4-stroke internal combustion general-purpose gasoline engine with vertical shaft,