Vespa P125 ETS: history, specs, pictures

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Vespa P125 ETS
Production 1985
Class Scooter
Two strike, Single cylinder, air-cooled
Bore / Stroke 55.9mm x 55.9mm
Compression ratio 9.5:1
Horsepower 8.58 HP (6.4 KW) @ 6000RPM
Fuel System Carburetor
Transmission Gear box: 4-Speed, grip-shift, constant mesh

Final Drive: Direct drive

Clutch: Wet Multi-plate
Brakes Front: Drum 150 mm
Rear: Drum 150 mm
Front Tire 3.0 x 10"
Rear Tire 3.0 x 10"
Wheelbase 46.5 inches (1181 mm)
Length 66.1 inches (1679 mm)
Width 27.6 inches (701 mm)
Weight 90.0 kg (wet)
Manuals Service Manual

The Vespa P125 ETS was a Two strike, Single cylinder, air-cooled scooter produced by Vespa in 1985. Claimed horsepower was 8.58 HP (6.4 KW) @ 6000 RPM.


A 55.9mm bore x 55.9mm stroke result in a displacement of just 121.2 cubic centimeters.


The bike has a 4-Speed, grip-shift, constant mesh transmission. Power was moderated via the Wet Multi-plate.


It came with a 3.0 x 10" front tire and a 3.0 x 10" rear tire. Stopping was achieved via Drum 150 mm in the front and a Drum 150 mm in the rear. The wheelbase was 46.5 inches (1181 mm) long.

1985 Vespa P125 ETS[edit]

1985 Vespa P125 ETS 1985 Vespa P125 ETS

The engine (complete with three transfer ports) produced about 2 bhp more as compared to its installation in an ET3 – presumably this was accomplished by the increased compression ratio and slightly bigger carb size. The electronic ignition was not publicised this time around since this feature could already be found on some of the PK range, with the rest soon to follow. As with its predecessors, a large expansion box type silencer was fitted as standard – these being the only Vespas to feature such an item. An unfortunate consequence of one being fitted on this model was that there was no room for the side-mounted spare wheel found on other variants.