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Vespa (Piaggio) Vespa 125 (VN1T)
Description
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)
| Body: Grigio (Pastello) PIA135 (15048) |
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| Primer: Rosso Opaco (Antiruggine) PIA55 (10055M) |
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| Mounting parts: Grigio (Pastello) PIA135 (15048) |
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| Vehicle (general) | |
|---|---|
| name: | Vespa 125 (VN1T) |
| year of manufacture: | 1954, 1955 |
| VIN: | VN1T |
| 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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