Model C 125

  • C 125

The Lambretta model C was the fist Lambretta built using fully steel tubular construction for the frame.

Technical Specification

Model C 125
Amount Produced 87500
Production Dates January 1950 – November 1951
Frame Prefix 125C
Engine Prefix 125C
Frame Starting Number 50001 (not definitive examples found below this figure)
Engine Starting Number 50001 (not definitive examples found below this figure)
Homologation 83
Engine 123cc, two stroke, 52x58mm
Power and Rate 4.3hp at 4200-4500rpm
Compression Ratio 1:6
Head and Cylinder Aluminium and cast iron
Engine Cooling Air
Ignition Filso or Marelli magneto
Spark Advance 26' – 28' 33 – 35 mm on the circumference of the flywheel
Point Setting .40-.50 mm
Carburetor dell'orto MA16 or enith 18 MCT
Choke MA: 16mm
Slide MA: 55
Needle MA: C9
Atomiser 2MA: 60
Main Jet MA: 65 / MCT: 80/84
Pilot Jet MA: 45 / MCT: 40
Starter N/A
Float MA: 7.5 grams
Starter Pedal
Crankcase oil Mobil Oil A 180 grams
Transmission Oil Special Mobil Grease no4
Oil / Gas Mix 5%
Clutch Multiple discs in oil bath
Gears 3 speed with hand shifter
Primary Transmission Gear
Secondary Transmission Shaft and Gear
Frame Steel tubing of strong 1240mm sections
Front Suspension Oscilating conecting rods
Rear Suspension Joint attached to motor
Wheels Dismountable wheels
Tires 4.00 x 8 pirelli
Tire Presure Front .7-8 ATM, rear 1.75 ATM
Brakes Drum
Dry Weight 70kg
Km Per Gallon 1lt per 50km
Fuel Capacity 5.6lt plus .87lt reserve
Max Speed 65-70kmh
Initial Price 125,000 Italian Lira
Electrical System 6 volt
Sparkplug Bosch 225 short thread
wheel Base 1240mm
Maximum Length 1730mm
Ground Clearance 140mm
Maximum Seat Hight 760mm
Minimum Turning Radius 1500mm
Colour Chamois 8011
Light Olive Khaki 8027
Red (Early examples)
Blue (Early examples)
Engine Colour Fiat 690