Vespa 125 (VM1T)
Vespa 125 (VM1T)

Vespa 125 (VM1/VM2)

The VM1T is the further development of the V33T and has a completely new engine with cross scavenging and the same dimension of 54 mm for piston stroke and bore. The piston has a new, smaller nose shape and in the new cylinder head the spark plug is no longer installed centrally but at an angle of 45°. The intake and exhaust ports of the cylinder are now arranged 90° crosswise (exhaust downwards, intake to the side), previously they were largely next to each other on the luggage compartment side. The 3-speed gearbox is fitted with stronger gears and a larger gearshift cross, the clutch is reinforced from 2/2 to 3/3 cork/steel plates. The new crankshaft no longer has mushroom-shaped cheeks, but round cheeks which enable better balancing.

The flywheel magneto ignition gets a new pole wheel with elongated inspection openings and ignition contacts, which are now easy to adjust with a screwdriver. The fan cover no longer has slots, but is closed except for a central round opening. The aluminum cylinder cover has been reshaped and now encloses the entire cylinder. The toothed kickstarter segment has new dimensions.

The rear brake drum is reinforced with a ring to minimize deformation due to thermal stress. The exhaust tailpipe is now routed straight out on the left-hand side under the luggage compartment jaw; on the V33T it still ran to the rear on the right-hand side under the engine. The middle and rear part of the frame is reinforced. The reinforcement in the upper leg shield bead, as well as the support plate of the leg shield cascade and the rear part of the frame are widened to give the frame greater rigidity. The engine block, which is still made of aluminum, is given a new shape: it is no longer open at the sides, but has seven air slots through which the air for cylinder cooling reaches the fan wheel.

The swinging saddle is more comfortable and equipped with two double conical springs and a chrome-plated grab handle for the passenger. The saddle cover is dark green. The diameter of the headlight on the mudguard has been increased from 95 to 105 mm and the rectangular rear light is wider. The shell-shaped light switch with 3 switch positions plus kill is now made entirely of gray plastic and bears the Vespa lettering in relief on the cover.

The clutch and throttle cables are now routed out of the grommets in the leg shield tunnel and then inside the handlebar tube to the lever or throttle slide. There are minor changes to the clutch and brake levers; the cable nipple is now also located inside the lever mount on the brake lever.

The step bar end pieces are no longer grooved right up to the rivet and now have a small tongue instead, which holds the step bar rubbers better. The rivet heads also have a different, now drop-shaped form. The tank capacity has been increased by 1.25 liters to 6.25 liters compared to the V33T. The total weight of the scooter increases by 1.8 kg.

The VM2T differs from the first model series in only a few details: new Italian road traffic regulations mean that the tank must be fitted with a special cover. Road traffic regulations mean that the headlight must be fitted with a parking light. As a result, the light switch now also has one more switch position and is slightly larger overall. The headlight housing has a red indicator light on the top so that the function of the headlight can be checked at night. The rectangular rear light is again slightly larger and remains the same on all (Italian) models up to 1958. The engine and luggage compartment cheeks are still made of aluminum, but sheet steel may have been used on the last models. (Source: GSF)

Frame numbers by year of construction:
1952: VM1T 1001-8830 (quantity: 7,830)
1953: VM1T 8831-85870 (quantity: 77,040)
Total number of units: 84,870

1953: VM2T 85871-100619 (quantity: 14,749)
1954: VM2T 100620-176014 (quantity: 75,395)
Total number of units: 90,144

Original paint (MaxMeyer)

Bodywork:
Grigio (Pastello)
PIA135 (15048)
Grigio Pastello 15048
Primer:
Rosso Opaco (Antiruggine)
PIA55 (10055M)
Rosso Opaco 10055M
Add-on parts:
Grigio (Pastello)
PIA135 (15048)
Grigio Pastello 15048
Vehicle (general)
Designation
Vespa 125 (VM1T)
VIN
VM1T
Year of construction
1952, 1953
Number of units built
84868
 
Vehicle engine
Motor type
2-Takt
Emission standard
keine
Displacement
123.7 cm³
Stroke
54 mm
Drill hole
54 mm
Motor type
2-Takt
Number of cylinders
1
Type of cooling
Luft
Power (kW)
3.31 kW
Power (PS)
4.5
rpm (p max)
5000
Compaction
1:6.5
Mixture preparation
Vergaser
Carburetor
Dell'Orto TA 18C
Starter
Kickstarter
Clutch
Manuell
Motor manufacturer
Piaggio
V max
75 km/h
 
Vehicle dimensions
Length
1680 mm
Width
790 mm
Height
960 mm
Seat height
770 mm
Ground clearance
220 mm
Wheelbase
1160 mm
Gasoline tank capacity
6.25 Ltr.
Weight (empty)
85 kg
 
Vehicle tires
Front tires
3.50 - 8
Rear tires
3.50 - 8
Front rim
2.10 - 8
Rear rim
2.10 - 8
 
Vehicle brake system
Front brake type
Trommelbremse
Type of rear brake
Trommelbremse
Ø front
124 mm
Ø rear
126 mm
Front brake actuation
mechanisch mit Seilzug
Rear brake actuation
mechanisch mit Seilzug
 
Vehicle engine - ignition system
Spark plug
(NGK) B7HS
Type of ignition
Kontaktzündung
Pre-ignition
28
Distance contacts
0.4 mm
Power (light)
36 W
Tension
6 V
 
Vehicle Engine - Gearbox
Gearbox type
manuell
Number of gears
3
Complete translation - 1:
4.85
Translation Primary - 1:
3.45
Gear ratio 1 - 1:
4
Gear ratio 2 - 1:
2.5
Gear ratio 3 - 1:
1.593
 
Vehicle fuels
Fuel
Super (ROZ 95)
Mixing ratio
1:25
Gear oil
SAE30
Quantity of gear oil
0.25 Ltr.
 
General
Code (new)
VESPA_VM1T