Model LD 125

  • Ld 125

The Lambretta model LD 125.

Technical Specification

Model LD 125
Amount Produced 110334
Production Dates December 1951 – October 1955
Frame Prefix 125LD
Engine Prefix 125LD
Frame Starting Number 000001
Engine Starting Number 240000 and 420000 (not definitive as the numbers follwed consecutively from the LC125)
Homologation 222
Engine 123cc, two stroke, 52x58mm
Power and Rate 5hp at 4600rpm
Compression Ratio 1:6.5
Head and Cylinder Aluminium and cast iron
Engine Cooling Forced Air
Ignition Filso or Marelli magneto
Spark Advance Filso: 32 – 34 mm on the circumference of the flywheel. Marelli: 34 – 36.5 mm
Point Setting .40-.50 mm
Carburetor dell'orto MA16 B2 / Dell'orto MA 18 B3 / enith 18 MA
Choke 18mm
Slide B2: 50 / B3: 75
Needle D1
Atomiser 255b
Main Jet B2: 75 / B3: 70 / MA: 102
Pilot Jet B2: 40 / B3: 45
Starter 50
Float 6.5 grams
Starter Pedal or optional electric starter
Crankcase oil Mobil Oil A 400 grams
Transmission Oil Mobil Lube GX140 100 grams
Oil / Gas Mix 5%
Clutch Multiple discs in oil bath
Gears 3 speed with hand shifter
1st 1: 12,9 – 27,6 kmh
2nd 1: 7,5 – 47,5 kmh
3rd 1: 4,75– 75 kmh
Primary Transmission Gear
Secondary Transmission Shaft
Frame Steel tubing of strong 1281mm sections
Front Suspension Oscilating conecting rods
Rear Suspension torsion bar attached to motor
Wheels Dismountable wheels
Tires 4.00 x 8 pirelli or ceat
Tire Presure Front .7-8 ATM, rear 1.75 ATM
Brakes Drum
Dry Weight 85kg
Km Per Gallon 1lt per 50km
Fuel Capacity 5.6lt plus .7lt reserve
Max Speed 70-75kmh
Initial Price 166,000 Italian Lira
Electrical System 6 volt
Sparkplug Bosch 225 short thread
wheel Base 1281mm
Maximum Length 1770mm
Ground Clearance 740mm
Maximum Seat Hight 110mm
Minimum Turning Radius 1500mm
Maximum Width 740mm
Colour Olive Green 8021
Sand Beige 8029 from 1953 only available in this colour
Light Chamois 8055
Engine Colour Fiat 690