Vespa 98/125/150 /GS -'56
VESPA
150 150 ccm 2T AC '57-'58 VB1T

VESPA 150 150 cc 2T AC '57-'58 VB1T

Photo from VESPA 150 150 cc 2T AC '57-'58 VB1T | KLASSIK VESPA

Overview Vespa 150 VB1

The Vespa 150 VB1 was the successor to the VL ("Struzzo") in the 150cc Model category. Until the production of the Vespa 150 GS in 1961, it was the last wideframe model from Piaggio. In 1958, it was replaced in its displacement class by the VBA, which was equipped with a Disc Valve and a largeframe for the first time.

Model history of the Vespa 150 VB1

Significant changes were made to the frame of the 150 VB compared to the predecessor model: Wires and cables now ran in the frame tunnel all the way to the Handlebar, which was now designed as a closed handlebar made of die-cast aluminium, similar to the Vespa GS/3 - bringing the era of tubular handlebars to an end. However, the design of the speedometer with the white Face Plate and the red Control Light on the Steering Head, as on the Struzzo, were retained.

The Vespa 150 VB1 Engine

The Engine of the Vespa 150 VB was identical to that of the "Struzzo", but a Dellorto MA19D Carburettor was used on the 150 VB.

Used Vespa 150 VB1 situation

On the used market, the Vespa 150 VB is priced in the middle segment, although it is not as expensive as the previous models. Where do you look for this vehicle?

Miscellaneous Vespa 150 VB1

  • The Brake Pedal, the Headlight ring, the Lock of the Glovebox Door and the Vespa Badge were chrome-plated.

  • The Steering Lock was matt nickel-plated.

  • The brake and Clutch Lever, the Seating of the Light Switch as well as the shift element on the Handlebar and the decorative fin on the Mudguard were highly polished.

  • The kickstand and its Spring, the front shock absorber Spring, the Washer of the Kickstart Lever, as well as Rim and wheel nuts and all external Screws were galvanised.

  • The rear Shock Absorber, the rear suspension Springs and the engine bolts were phosphatised.

From frame number *61421 onwards, the old fuel tap with boom and Gauge Glass was replaced by a smaller fuel tap with a long ventilation tube.

The vehicle was also equipped with a rectangular-rounded Veglia speedometer with a white dial up to 90 km/h.

The colours of the Vespa 150 VB1:

Colour

Colour Name

Max Meyer Code

Colour info

grigio-azzurro-metallizato-1-268-0418

Grigio Azzurro Metallizato

1.268.0418

Body / various Frame Parts

rosso-opaco-10055m

Rosso Opaco

10055M

Rust protection/primer

Sources

General Information

  • Producer VESPA
  • Model 150
  • Displacement 150 ccm
  • Cycles and cooling 2T / AC
  • Year of construction `57-`58
  • Type VB1T
  • Chassis number (from/to) 1001 - 99700
  • Built quantity 98700
  • Dimension KLASSIK VESPA
  • Vehicle type Vespa 98/125/150 /GS -'56

Years of production & chassis numbers

  • Year of construction:

Technical data

  • Chassis type: self-supporting steel frame
  • Chassis number position: at the upper edge of the frame opening to the Engine
  • Length: 1700 mm
  • Width: 730 mm
  • Height: 1025 mm
  • Wheelbase: 1165 mm
  • Weight (empty): 98 kg
  • Turning circle: 1500 mm
  • Performance (PS): 5.4 PS
  • Performance (kW): 3.98 kW
  • at rpm: 5000
  • Top speed: 83 km/h
  • Engine type: 2-stroke internal combustion engine
  • Engine manufacturer: PIAGGIO
  • Engine number: VB1M
  • position of engine number: on the Crankcase above the stud bolt for fastening the motor to the Traverse

Engine - cylinders, clutch & exhaust

  • Displacement: 145.6 ccm
  • Bore: 57 mm
  • Stroke: 57 mm
  • Number of cylinders: 1
  • Transfer ports: 2
  • Type of cooling: Air
  • Compression: 6,3:1
  • Starter: Kickstarter
  • Clutch: Multi-disc clutch in oil bath on the Crankshaft
  • Clutch type: Ø 96mm, 3 Clutch Friction Plates, 6 Springs

Engine - Carburetor

  • Mixture preparation: Carburetor
  • Type of carburetor: MA19D
  • Main jet: 75
  • Mixing tube: 260
  • Idle jet: 40

Engine - Transmission

  • Type of gearbox: Manual gearstick
  • Number of gears: 3
  • Gear rotation: 1st gear: 14:56 Z (4,00)
  • Gear rotation: 2nd gear: 20:49 Z (2,45)
  • Transmission: 3rd gear: 27:42 Z (1,56)
  • Gear rotation: Total: im 3. Gang: 4,76
  • Transmission: Primary: 22:67 Z (3,05)

Engine - Ignition

  • Ignition type: Interruptor ignition
  • Ignition timing: 28 °
  • Battery voltage: 6 V
  • Charging power (ignition): 30 W
  • Spark plug type: NGK B6HS, Bosch W5AC
  • Spark plug thread: short thread
  • Pre-ignition timing: 28

Chassis - tires and rims

  • Front tyre(s): 3.50x8
  • Front rim(s): 2.10x8
  • Rear tyre(s): 3.50x8
  • Rear rim(s): 2.10x8
  • Front tyre pressure: 1,2 - 1,5
  • Rear tyre pressure: 2,0 - 2,2

Chassis - Brakes

  • Brake system: Drum Brake
  • Front brake: Ø inside 125mm lining width: 18 mm
  • Front brake operation: mechanical with Cable
  • Rear brake: Ø inside 127mm pad width: 23 mm
  • Rear brake operation: mechanical with Cable

Chassis - steering column & swing arm

  • Front wheel guide: short swing arm with one arm
  • Rear wheel guide: Drive set swing arm
  • Front suspension: Shock Absorber L 175 mm, separate Springs L 155 mm
  • Rear suspension: Shock Absorber L 395 mm, integrated Springs

Electronics

  • Battery: 6V 4Ah
  • Alternator: 6 V - 30 W, swing light magneto ignition
  • Headlights: 6V 25/25W BA20d
  • Parking light: 6V 1.5 W
  • Speedometer light: 6V 3W
  • Taillights: 6V 3W
  • Horn: 6V AC / DC (with Battery)

Operating materials

  • Fuel tank capacity: 8.2 l
  • Included reserve: 2.4 l
  • Mixing ratio: 1:50
  • Range (approx.): 340 km
  • Gearbox oil: SAE 30
  • Amount of gearbox oil: 0.25 l
  • Fuel consumption: 2.4 l/100km

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