December 19, 2025 HomeRatoRato CG175 (RW162FMK-2) FORUM! Dear visitors, now our site has a FORUM where you can ask all your questions and share your experience.
The Rato CG175 (RW162FMK-2) is a 175.1 ml (10.7 cu-in) single-cylinder air-cooled 4-stroke internal combustion vertical motorcycle engine from Rato CG-series, manufactured by Chongqing RATO Holding (Group) CO., LTD.
The Rato CG175 engine uses rocker arm of cast iron and tappet of aluminum alloy; capacitance discharge ignition system and electric or kick start. The engine is equipped with a 5-speed gearbox.
The engine cylinder bore is 62 mm (2.44 in) and piston stroke is 58 mm (2.28 in). The CG175 (RW162FMK-2) produced 12.9 PS (9.5 kW; 12.7 HP) at 8,000 rpm of maximum horsepower and 13.0 N·m (1.32 kg·m, 9.58 ft·lb) at 7,000 rpm of torque.
General information
Engine Specifications
Model
CG175 (RW162FMK-2)
Type
Vertical, four-stroke, single cylinder
Displacement
175.1 ml (10.7 cu-in)
Max. horsepower
12.9 PS (9.5 kW; 12.7 HP) at 8,000 rpm
Max. torque (crank PTO)
13.0 N·m (1.32 kg·m, 9.58 ft·lb) at 7,000 rpm
Clutch method
Manual wet multi-plate
Gearshift method
5-speed gearshift
Cooling system
Forced-air
Ignition system
Capacitance discharge ignition (CDI)
Lubricating system
Splash
Starting system
Electric / kick
Fuel used
Unleaded gasoline (octane number 86 or higher)
Fuel consumption
354 g/kw·h
Dimensions and Weight
Rato CG175 (RW162FMK-2)
Length, mm (in)
358 (14.09)
Width, mm (in)
320 (12.6)
Height, mm (in)
425 (16.7)
Dry weight, kg (lb)
33 (72.7)
Service Information
Oil system
Oil capacity
1.0 L
Ignition system
Spark plug
D8RTC
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FORUM! Dear visitors, now our site has a FORUM where you can ask all your questions and share your experience.
The Rato CG175 (RW162FMK-2) is a 175.1 ml (10.7 cu-in) single-cylinder air-cooled 4-stroke internal combustion vertical motorcycle engine from Rato CG-series, manufactured by Chongqing RATO Holding (Group) CO., LTD. 
