Vespa 50 (1963-90)

The Vespa 50 was produced from 1963 to 1990, and came in various models such as the N, L, R, S, SS, and SR. It featured a two-stroke, single cylinder engine with a capacity of 49.8 cc and a compression ratio of 7.2:1. It had a Dell’Orto 14 carburetor and was air-cooled with a centrifugal fan. The ignition was a 4-pole flywheel magneto and it had a kick start. Its clutch was multi-plate and had a 3-speed mesh gears transmission with a direct drive final drive. The frame was made of pressed sheet steel with a streamlined monocoque structure. Its suspension was hydraulic shock absorbers, and it had drum brakes in both the front and rear. It also had pressed steel flanges with 2.75 x 9″ wheels and tyres. Additionally, its length was 1630 mm, its height was 980 mm, and it had a ground clearance of 210 mm. Its dry weight was 67.5 kg and its fuel capacity was 5.6 L. It consumed an average of 1.5 L/100 km and had a top speed of 40 km/h.

Technical specifications:

Make Model: Vespa 50 (N, L, R, S, SS, SR)

Year: 1963-90

Engine: Two stroke, single cylinder
Capacity: 49.8 cc / 3.0 cub in
Bore x Stroke: 38.4 x 43 mm
Compression Ratio: 7.2:1
Mixture: 1:50
Carburettor: Dell’Orto 14
Cooling: Air cooled with centrifugal fan
Battery: 2 x 6V – 9.5 Ah batteries
Ignition: 4 Pole flywheel magneto
Starting: Kick start
Spark Plug: Bosch W225 T1
Clutch: Multi plate
Max Power: 1.9 kW / 2.6 Hp @ 4500 rpm
Transmission: 3 Speed mesh gears
Gear ratios: 1st 22.33 / 2nd 12.56 /3rd 7.95:1

Final Drive: Direct drive
Frame: Pressed sheet steel with streamlined monocoque structure
Front Suspension: Hydraulic shock absorber with rubber elements
Rear Suspension: Hydraulic shock absorber
Front Brakes: Drum
Rear Brakes: Drum
Wheels: Pressed steel flanges
Front Tyre: 2.75 x 9″
Rear Tyre: 2.75 x 9″
Dimensions: Length: 1630 mm / 64.2 in Height: 980 mm / 33.6 in
Ground clearance: 210 mm / 8.3 in
Dry Weight: 67.5 kg / 148 lbs
Fuel Capacity: 5.6 L / 1.5 US gal
Consumption average: 1.5 L/100 km / 66.7 km/l / 157 US mpg
Top Speed: 40 km/h /29 mph
Source:, Wikipedia

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