Categories: Vespa

Vespa 125 GT Sprint (1966-73)

The Vespa 125 GT Sprint motorcycle was produced from 1966 to 1973, and variants included the GTR, TS, Primavera ET3, and P125X. The engine was a two-stroke, single-cylinder with a capacity of 121.2cc and a maximum power output of 3.4 kW. It featured a Dell’Orto SHB 16/16 carburetor, air cooling with a centrifugal fan, and a fuel mixture of 1:50. The motorcycle had kick-start starting and a 6V battery, and the clutch was multiplate. The 4-speed, grip-shift, constant mesh transmission had direct drive final drive. The frame was made of pressed sheet steel with a streamlined monocoque structure, and the suspension included elastic with coil springs and hydraulic shocks on the front and rear. Drum brakes were used on both the front and rear, and the interchangeable wheels were fitted with 3.0 x 10″ tyres. The dry weight of the motorcycle was 73 kg, and the fuel tank had a capacity of 5.5 L. With an average consumption of 2 L/100 km, the Vespa 125 GT Sprint could travel up to 85 km/h and had a top speed of 53 mph. The motorcycle was only available in white. Sources of information include Wikipedia and Vespafan.ch.


Technical specifications:

Make Model: Vespa 125 GT/Sprint, GTR, TS, Primavera ET3, P125X

Year: 1966 – 73

Engine: Two stroke, single cylinder

Capacity: 121.2 cc / 7.4 cub in



Bore x Stroke: 52.5 x 57 mm

Carburetor: Dell’Orto SHB 16/16

Cooling: Air cooled, centrifugal fan

Fuel Mixture: 1:50

Starting: Kick start

Battery: 6V

Clutch: Multiplate

Max Power: 3.4 kW / 4.6 hp

Transmission: 4 Speed, grip-shift, constant mesh

Final Drive: Direct drive

Frame: Pressed sheet steel, streamlined monocoque structure

Front Suspension: Elastic with coil spring and hydraulic shock

Rear Suspension: Elastic with coil spring and hydraulic shock


Front Brakes: Drum

Rear Brakes: Drum

Wheels: Interchangeable

Front Tyre: 3.0 x 10″

Rear Tyre: 3.0 x 10″

Dry Weight: 73 kg / 161 lbs

Fuel Capacity: 5.5 L / 1.5 US gal

Consumption average: 2 L/100 km / 50 km/l / 117 US mpg

Top Speed: 85 km/h / 53 mph

Colours: White


Sources: Wikipedia, Vespafan.ch
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