Vespa PX 125 T5 (1985-99)

The Vespa PX 125 T5 and PX 125 T5 Elestart motorcycles were produced between 1985 and 1999. They had a two-stroke, single cylinder engine with a capacity of 123.4 cc and a compression ratio of 11.3:1. The carburetor used was a Dell’Orto SI 24/24G and the fuel mixture was 1:20. The ignition system was a flywheel alternator, with a built-in H.T. coil and the motorcycles used a kick start to get going. The clutch was multiplate and the transmission was a four-speed, grip-shift, constant mesh system with a final direct drive. The motorcycles had a pressed sheet steel, streamlined monocoque frame, with helical spring and double-acting hydraulic dampers for the front and rear suspensions. The braking system was cable-operated, 125 mm expanding drum brakes in the front and rear. The wheels were interchangeable and had 3.5 x 10″ tires. The Vespa PX 125 T5 had a top speed of 106 km/h and could go 0 to 400 m in 20.2 seconds. The motorcycle came in red and white and had a fuel capacity of 8 L, with an average consumption of 2.7 L/100km.

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Technical specifications:

Make Model: Vespa PX125 T5, PX 125 T5 Elestart

Year: 1985 – 99

Engine: Two stroke, Single cylinder,

Capacity: 123.4 cc 7.5 cub in

Bore x Stroke: 52 x 55 mm

Carburetor: Dell’Orto SI 24/24G .

Compression Ratio: 11.3:1

Cooling: Air cooled, centrifugal fan

Fuel Mixture: 1:20

Spark Plug: Bosch W3CC or Champion N2C

Ignition: Flywheel alternator, with built in H.T. coil

Starting: Kick start

Clutch: Multiplate

Max Power: 8.8 kW / 12 hp @ 6500 rpm

Max Torque: 13.1 kW / 1.34 kgf-m / 9.7 ft/lb @ 6250 rpm

Transmission: 4 Speed, grip-shift, constant mesh

Gears: 1st 16.4 / 2nd 11.0 / 3rd 7.5 / 4th 5.8:1

Final Drive: Direct drive

Frame: Pressed sheet steel, streamlined monocoque structure

Front Suspension: Helical spring and double acting hydraulic dampers

Rear Suspension: Helical spring and double acting hydraulic dampers

Front Brakes: Cable operated, 125 mm expanding type drum brake

Rear Brakes: Cable operated, 125 mm expanding type drum brake

Wheels: Interchangeable

Front Tyre: 3.5 x 10″

Rear Tyre: 3.5 x 10″

Dimensions: Length: 1820 mm / 71.7 in Width: 700 mm / 27.6 in Height: 1170 mm / 46.1 in

Wheelbase: 1250 mm / 49.2 in

Ground Clearance: 100 mm / 3.9 in

Dry Weight: 112 kg / 247 lbs

Fuel Capacity: 8 L / 2.1 US gal

Reserve: 2.1 L / 0.55 US gal

Consumption average: 2.7 L/100 km / 37 km/l / 87 US mpg

Top Speed: 106 km/h / 64 mph

Standing 400 m / 437 yards: 20.2 sec

Colours: Red, White

Sources: Wikipedia