The Rato 120CC (RW152FMI) is a 119.7 cc (7.3 cu-in) single-cylinder air-cooled 4-stroke internal combustion horizontal motorcycle engine manufactured by Chongqing RATO Holding (Group) CO., LTD.
The Rato 120CC engine is equipped with CDI (capacitance discharge ignition system), the manual wet multi-plate clutch, electric or kick starter and 4-speed gearshift. The engine uses various styles of right and left covers. The top of the motor is protected from water and foreign particle, low fault rate and long lifetime.
Bore and stroke are 52.4 mm (2.06 in) and 55.5 mm (2.19 in), respectively. The 120CC (RW152FMI) produced 7.5 PS (5.5 kW; 7.4 HP) at 7,500 rpm of maximum horsepower and 8.5 Nm (0.87 kg·m; 6.27 ft·lb) at 5,500 rpm of torque .
Vertical, four-stroke, single cylinder
119.7 cc (7.3 cu-in)
7.5 PS (5.5 KW; 7.4 HP) at 7,500 rpm
Max. torque (crank PTO)
8.5 Nm (0.87 kg·m; 6.27 ft·lb) at 5,500 rpm
Manual wet multi-plate
Capacitance discharge ignition (CDI)
Electric or kick
Unleaded gasoline (octane number 86 or higher)
Dimensions and Weight
Rato 120CC (RW152FMI)
Length, mm (in)
Width, mm (in)
Height, mm (in)
Dry weight, kg (lb)
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