Lambretta A/B/C/D/E/F/J/Lui
LAMBRETTA
E / F 125 125 ccm 2T AC '53-'55 125E / 125F

LAMBRETTA E / F 125 125 ccm 2T AC '53-'55 125E / 125F

Photo from LAMBRETTA E / F 125 125 ccm 2T AC '53-'55 125E / 125F | LAMBRETTA

Overview Lambretta 125 E/F

Innocenti introduced the Lambretta 125 E model in April 1953 and produced a total of 42,352 units. Designed as an entry-level model, the Lambretta 125 E was characterised by a much simpler design compared to the C or D models. The Lambretta 125 F was launched in March 1954 and 32,701 scooters were produced by April 1955.

Lambretta 125 E/F model history

The Lambretta 125 E Model had a C-shaped frame tube under the rider's seat. A toolbox was integrated within this C-shaped frame, the fuel tank was located under the front seat and a storage box for food was located behind the passenger seat. This simplified frame design made the frame lighter than its predecessors. An eye-catching large round Headlight Unit adorned the front of the scooter, while a smaller round headlight was mounted directly above the licence plate at the rear. Short Legshields, similar to those of the Model D, were also fitted. A pull cord, comparable to the starting mechanism of a chainsaw, was positioned in front of the magneto to start the Engine. The Model E's Ignition could be adjusted to make it easier to tighten the pull cord and prevent the Engine from "kicking back" when starting and potentially injuring the user.
The rear suspension of the E model was the same as the torsion bar suspension of the Model D, while the front suspension was replaced with an elasticated suspension, as opposed to the trailing arm system of the Model D. In this design, the Forks folded back on themselves, using C-shaped Springs with Rubber in between, allowing the suspension to open and lock. Due to the inadequate suspension, many owners retrofitted their models with a special kit that introduced an additional Spring between the Handlebar and Fork. Another modification concerned the Starter Cable, with many converting to the Model F's Kickstart Lever, which also required the Legshields to be shortened, as the F model's Kickstart Lever was fitted to the front of the Engine. These adaptations make the Model E a rarity today.
The Lambretta 125 F adopted the C-shaped frame of the Model "E", including the integrated toolbox, the petrol tank placed under the Seat and a rear storage compartment. Other features that the F model shared with the E model included the torsion bar suspension at the rear, the direct air-cooled Engine and the Side Stand fitted as standard; a centre stand was offered as an option. To reduce costs, this Model used pressed steel Brake Drum instead of cast aluminium. In the middle of the production period, a second version of the F model was introduced, which featured Forks similar to those of the Model D.

f-125-125-ccm-2t-ac-53-55-125f
Lambretta 125 F

The Engine of the Lambretta 125 E/F

The Engine with a displacement of 123 cc in the Model E was basically the same as that of the Model D, with the exception of the Starter Cable, and allowed a maximum speed of 70 km/h. Production of the scooter ended in February 1954.

Used Lambretta 125 E/F market situation

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The colours of the Lambretta 125 E/F:

Colour

Colour name

Colour code

Colour info

verde-olivia-8021

Verde Oliva

8021

beige-sabbia-8029

Beige Sabbia

8029

grigio-chiaro-8012

Grigio Chiaro

8012

Model F

General Information

  • Producer LAMBRETTA
  • Model E / F 125
  • Displacement 125 ccm
  • Cycles and cooling 2T / AC
  • Year of construction '53-'55
  • Type 125E / 125F
  • Built quantity 75043
  • Dimension LAMBRETTA
  • Vehicle type Lambretta A/B/C/D/E/F/J/Lui

Years of production & chassis numbers

  • Year of construction:

Technical data

  • Chassis type: open centre tube steel frame
  • Length: 1760 mm
  • Width: 710 mm
  • Height: 950 mm
  • Seat height: 760 mm
  • Wheelbase: 1280 mm
  • Ground clearance: 130 mm
  • Weight (empty): 58 kg
  • Performance (PS): 3.68 PS
  • Performance (kW): 2.71 kW
  • at rpm: 4000
  • Top speed: 75 km/h
  • Engine type: 2-stroke internal combustion engine
  • Engine manufacturer: Innocenti
  • Engine number: 125E, 125F

Engine - cylinders, clutch & exhaust

  • Displacement: 123 ccm
  • Bore: 52 mm
  • Stroke: 58 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

Engine - Carburetor

  • Mixture preparation: Carburetor
  • Type of carburetor: 125E: Dell'Orto MU-14B2, 125F: Dell'Orto MU-14C1
  • Main jet: 68, 72

Engine - Transmission

  • Type of gearbox: Manual gearstick
  • Number of gears: 3
  • Gear rotation: 1st gear: 125E: (13,4), 125F: (13,2)
  • Gear rotation: 2nd gear: 125E: (8,00) 125F: (8,04)
  • Transmission: 3rd gear: 125E: (4,93), 125F: (4,90)

Engine - Ignition

  • Ignition type: Interruptor ignition
  • Ignition timing: 25 °
  • Battery voltage: 6 V
  • Charging power (ignition): 30 W
  • Spark plug type: NGK B8HS / Bosch W4AC
  • Spark plug thread: short thread

Chassis - tires and rims

  • Front tyre(s): 4.00x8
  • Front rim(s): 2.50x8
  • Rear tyre(s): 4.00x8
  • Rear rim(s): 2.50x8
  • Front tyre pressure: 1,0
  • Rear tyre pressure: 1,8 - 2,0

Chassis - Brakes

  • Brake system: Drum Brake
  • Front brake: Ø inside 125 mm
  • Front brake operation: mechanical with Cable
  • Rear brake: Ø inside 140 mm
  • Rear brake operation: mechanical with Cable

Chassis - steering column & swing arm

  • Front wheel guide: drawn short swing arm
  • Rear wheel guide: Drive set swing arm
  • Front suspension: Short swing arm with elasticated rubber inserts
  • Rear suspension: Torsion spring

Electronics

  • Alternator: 6V
  • Headlights: 6V 15W P26s
  • Taillights: 6V 1.5W

Operating materials

  • Fuel tank capacity: 6 l
  • Included reserve: 0.7 l
  • Mixing ratio: 1:50
  • Range (approx.): 430 km
  • Gearbox oil: SAE 50
  • Amount of gearbox oil: 0.6 l
  • Fuel consumption: 1.37 l/100km

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