Lui 75 (75 S, 75 SL, Vega, Cometa)
Lui 75 (75 S, 75 SL, Vega, Cometa)

Lambretta Lui
(like Luna, Vega & Cometa)

With the Lui, the Junior series faces competition from within the company. The Lui was intended to secure the lower end of the market segment. In order to save costs in production, the scooter was to be considerably slimmed down and reduced to the essentials. To ensure that the whole project did not look like this, a renowned design house was engaged in the form of Bertone, who also produced an avant-garde design for the Lui and Vega. To this day, Lui and Vega look as fresh as they did in spring 1968, when the slogan "All for Lui, and Lui for all" was used to advertise them.

The frame consists of a rear and front part. The front part consists of the usual tubular frame, while the rear part is pressed. The suspension was adapted from the Junior series. The brake drums are made entirely of steel to ensure good road holding. The mechanical system was adopted from the Junior series.

Lui 75 S & SL
Just a few months after the debut of the Lui 50, Innocenti was the only European exhibitor to present the Lui 75 at the 15th Motor Show in Tokyo. The Lui 75 was available in two versions: S and SL. Compared to the 50 cc models, the 75s had a more powerful electrical system that powered the high beam and rear brake light. Like the 50 S, the 75s had a double seat and the up-and-over exhaust. The engine produced 5.2 hp and accelerated quite well thanks to the four-speed gearbox.

The main difference between the S and the SL is the Lubematic, which the SL has. This is a separate lubrication system that was fitted as standard for the first time on an Italian scooter.

Both variants were only available in two colors, orange and metallic grey. The only obvious difference between the S and SL is the Lubematic sticker on the tank and the lettering on the leg shield.



Type:
Displacement:
Year of construction:
Quantity:
Code:
1. frame no.:
Lui 75
75 ccm
08/68 to 12/70
9.402
-
650.001


Lui 75 S, SL - 1st version
(March 1968 to early 1969)

Lambretta lettering on the left of the leg shield above the 50 C or CL, brake and clutch levers without balls at the end, chrome-plated grille behind the headlight


Lui 75 S, SL - 2nd version
(early 1969 to December 1970)

No more Lambretta lettering on the leg shield. Rectangular Lui lettering centrally on the leg shield. Brake and clutch levers with balls, chrome-plated grille behind the front headlight with Innocenti lettering. On a few vehicles there was a small Innocenti lettering above the Lui emblem.


Original paint (Lechler)

Grigio Met. (silver)
8060
Farbkarte
Giallo Ocra (Ochre)
8080
Farbkarte
Vehicle (general)
Designation
Lui 75 (75 S, 75 SL, Vega, Cometa)
VIN
20/8
Year of construction
1968, 1969, 1970
Number of units built
9402
Colors
ocra (8080)
 
Vehicle engine
Motor type
2-Takt
Emission standard
keine
Displacement
74.4 cm³
Stroke
44 mm
Drill hole
46.4 mm
Motor type
2-Takt
Number of cylinders
1
Type of cooling
Luft
Power (kW)
3.68 kW
Power (PS)
5
rpm (p max)
6300
Compaction
1:9.3
Mixture preparation
Vergaser
Carburetor
Dell'Orto SH1/20
Starter
Kickstarter
Clutch
Manuell
Motor manufacturer
Innocenti
V max
82.5 km/h
 
Vehicle dimensions
Length
1700 mm
Width
656 mm
Height
1028 mm
Seat height
770 mm
Wheelbase
1202 mm
Gasoline tank capacity
6 Ltr.
of which reserve (gasoline)
0.8 Ltr.
Weight (empty)
76 kg
 
Vehicle tires
Front tires
3.00 - 10
Rear tires
3.00 - 10
Front rim
2.10 - 10
Rear rim
2.10 - 10
 
Vehicle brake system
Front brake type
Trommelbremse
Type of rear brake
Trommelbremse
Ø front
125 mm
Ø rear
150 mm
Front brake actuation
mechanisch mit Seilzug
Rear brake actuation
mechanisch mit Seilzug
 
Vehicle chassis
Chassis type front
Schwinge gezogen, nur Feder
Rear suspension type
Federbein
 
Vehicle engine - ignition system
Spark plug
(NGK) B7ES
Type of ignition
Kontaktzündung
Pre-ignition
21
Distance contacts
0.4 mm
Power (light)
33 W
Tension
6 V
 
Vehicle Engine - Gearbox
Gearbox type
manuell
Number of gears
3
Complete translation - 1:
6.9
Translation Primary - 1:
3.538
Gear ratio 1 - 1:
5.44
Gear ratio 2 - 1:
3.538
Gear ratio 3 - 1:
2.625
Gear ratio 4 - 1:
1.95
 
Vehicle fuels
Fuel
Super (ROZ 95)
Mixing ratio
1:50
Gear oil
SAE80
Quantity of gear oil
0.5 Ltr.
 
General
Code (new)
INNOCENTI_LUI75