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Vespa (Piaggio) Vespa 125 (VN1T)

Vespa (Piaggio) Vespa 125 (VN1T)


Vespa 125 (VN1/VN2)

The VN is the last Italian model with the headlight on the fender and the last wideframe of the 125 series. The successor of the VM is considered a cheap model, as the 150 cc models are now more important for Piaggio and some - mainly optical - things are slimmed down. For example, compared to the VM, there are only 7 (instead of 9 before) kick bars, the swingarm cover is no longer needed, lettering and emblem are produced cheaper and the main stand has no rubber feet. But the engine of the VN is the same as the one of the predecessor VM, only the nose of the piston gets a flatter shape to (quote Vespa Tecnica) "avoid the metallic noises". The kick starter and brake pedal are made of cast aluminium and have a waffle pattern on the tread surface, the rubber covers are saved. (Source: GSF)

Frame numbers VN1 by year of manufacture:
1954: VN1T 1001-23000 (quantity: 22.000)
1955: VN1T 23001-50100 (quantity: 27.100)
Total number of units: 49.100

Original paint VN1 (MaxMeyer)

Grigio (Pastello)
PIA135 (15048)
Grigio Pastello 15048
Rosso Opaco (Antiruggine)
PIA55 (10055M)
Rosso Opaco 10055M
Mounting parts:
Grigio (Pastello)
PIA135 (15048)
Grigio Pastello 15048
Vehicle (general)
name: Vespa 125 (VN1T)
year of manufacture: 1954, 1955
no. of exemplars produced: 49098
Vehicle sizes
length: 1680 mm
width: 790 mm
height: 940 mm
seat height: 770 mm
ground clearance: 220 mm
wheelbase: 1160 mm
petrol tank capacity: 6.25 l
tank reserve (petrol): 0.65 l
weight (dry): 85 kg
Vehicle wheels
front tyre: 3.50 - 8
rear tyre: 3.50 - 8
front wheel rim: 2.10 - 8
rear wheel rim: 2.10 - 8
Vehicle brakes
front brake type: drum brake
front brake operation: mechanical with cable
Ø front: 124 mm
rear brake type: drum brake
rear brake operation: mechanical with cable
Ø rear: 126 mm
Vehicle engine
displacement: 123.7 cm³
stroke: 54 mm
bore: 54 mm
engine type: 2-stroke
number of cylinders: 1
type of cooling: air
power (kW): 3.31 kW
power (HP): 4.5
rpm (P max): 5000
compression ratio: 1:6.5
mixture preparation: carburettor
carburettor: Dell'Orto TA 18C, Dell'Orto TA 18E
starter: kickstarter
clutch: manual
engine brand: Piaggio
max speed: 75 km/h
engine type: 2-stroke
emission standard: none
Vehicle engine - ignition
ignition type: point set ignition
advanced ignition: 28
points distance: 0.4 mm
power (light): 36 W
voltage: 6 V
spark plug: (NGK) B7HS
Vehicle engine - gearbox
gear change type: manual
no. of gears: 3
ratio primary - 1:: 3.045
ratio speed 1 - 1:: 4
ratio speed 2 - 1:: 2.5
ratio speed 3 - 1:: 1.593
overall ratio - 1:: 4.85
Fahrzeug Betriebsstoffe
fuel: Super (ROZ 95)
mix ratio: 1:25
gearbox oil: SAE30
gearbox oil capacity: 0.25 l
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