Engine and performance
- Displacement: 180.69 cm³
- Bore x Stroke: 63.5 mm x 57 mm
- Horsepower: 10.3 hp @ 5700 rpm
- Top speed: 104 km/h (65 mph)
- Cooling system: Air-cooled, with bent flywheel magneto blades for improved cooling.
- Carburetor: Dellorto SI20/20D
Transmission and clutch
- Transmission: 4-speed manual gearbox
- Clutch: Multi-disc clutch in oil bath on the crankshaft.
Chassis and suspension
The Vespa Rally 180 features a self-supporting steel frame. Both front and rear wheels have helicoil springs and hydraulic shock absorbers. The front wheel uses a short single-arm swingarm, while the rear wheel has a drive set swing arm.
Brakes, tires, and rims
It is equipped with drum brakes on both wheels, with an internal diameter of 150 mm and lining width of 24 mm. Both front and rear tires are 3.50×10, mounted on 2.10×10 rims.
Dimensions and weight
The scooter has a length of 1770 mm, width of 670 mm, and height of 1070 mm. It has a wheelbase of 1230 mm, an empty weight of 102 kg, and a permitted total weight of 256 kg. Additional dimensions include a seat height of 810 mm, ground clearance of 220 mm, and a turning circle of 1400 mm.
Electrical system
The electrical system includes interruptor ignition, a 6V 8Ah battery, and a charging power of 50 W. Headlights are 6V 25/25W BA20d. Early models had a chrome-plated taillight, later replaced by a square one similar to the Rally 200.
Fuel and other fluids
The fuel tank has a capacity of 8.2 liters, including a 1.8-liter reserve. It uses SAE 30 gearbox oil, with an amount of 0.25 liters. Fuel consumption is rated at 2.8 l/100km
