Model LD 125 '57

The Lambretta model LD 125 '57.

Technical Specification

Model	LD 125 '57
Amount Produced	44665
Production Dates	January 1956 – July 1958
Frame Prefix	125LD
Engine Prefix	125LD
Frame Starting Number	522001 (not definitive)
Engine Starting Number	522001 (not definitive)
Homologation	Unknown
Engine	123cc, two stroke, 52x58mm
Power and Rate	5hp at 4600rpm
Compression Ratio	1:6.3
Head and Cylinder	Aluminium and cast iron
Engine Cooling	Forced Air
Ignition	Filso, Nassetti or Marelli. Filso or Marelli magneto
Spark Advance	24' – 26' 4 – 4.6 mm before TDC
Point Setting	.40-.50 mm
Carburetor	Dell'orto MA 18 B4
Choke	18mm
Slide	75
Needle	D1
Atomiser	255b
Main Jet	70
Pilot Jet	40
Starter	55
Float	6.5 grams
Starter	Pedal with helical or optional electric starter
Crankcase oil	Agip Energol SAE 30 550 grams
Transmission Oil	Agip energol 140 120 – 130 grams
Oil / Gas Mix	6%
Clutch	Multiple discs in oil bath
Gears	3 speed with hand shifter
1st
2nd
3rd
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
Tire Presure	Front .8 ATM, rear 1.75 ATM
Brakes	Drum
Dry Weight	86kg
Km Per Gallon	1lt per 100km
Fuel Capacity	6.4lt plus .7lt reserve
Max Speed	70-75kmh
Initial Price	135,000 Italian Lira
Electrical System	6 volt
Sparkplug	Bosch 225 short thread
wheel Base
Maximum Length
Ground Clearance
Maximum Seat Hight
Minimum Turning Radius
Colour	Earth Grey 8041
Engine Colour	Fiat 690