1961 MV AUGUSTA 48 LIBERTY

Lot number

17

Estimated price

3000
4000

Description

1961 MV AUGUSTA 48 LIBERTY

Frame no.:  *1V-L-813591*

Engine no.: *1V-L-813591*

The MV Agusta Liberty was a light motorcycle built in the MV Agusta factory in Cascina Costa di Samarate, Italy from 1961 to 1969. After the Nuovo codice della strada (traffic code) came into force, motorcycles with a cylinder capacity of less than 50 cc and a maximum speed of 40 km/h were the only motor vehicles that could be used by people without a driving license.

As a motorcycle aimed at youngsters not old enough to hold a licence, the MV technicians focused giving the machine ‘real’ motorcycle looks. The chassis and bodywork were of a generous size for its engine size. The ‘Liberty’ was offered in two versions, the ‘Turismo’ and the ‘Sport Speciale’, priced at 112,000 and 114,000 Lire respectively. This was quite inexpensive, in relation to the technical refinement of the engine and chassis. For the domestic versions of the ‘Liberty’, to the ‘Code’, the maximum speed was 40 km/h, however, overseas version were capable of 60 km/h. Initially fuel consumption of 1 litre of petrol per 100 km was claimed, later a more credible consumption of 1.5 liters per 100 km was claimed.

A second series was introduced in 1966, 18” wheels replaced the original 16″ items and the ‘Sport’ received a 4-speed gearbox. A more upmarket ‘America’ model was introduced.

The Liberty’s engine was an air-cooled pushrod single-cylinder four-stroke with a bore and stroke of 39 x 42 mm giving an displacement of 47,7 cc. Compression ratio was 7.5:1 and the ignition was provided by a magneto. Power output was 1.5 bhp @ 4,500 rpm. A wet multi-plate clutch was driven by gears from the crankshaft. There was initially a three-speed gearbox, but sports models got 4 speeds from 1966. Gears were controlled by a handlebar twist grip. The rear wheel was driven by a chain. The MV Agusta had a double cradle frame and telescopic forks were used. At the rear there was a swinging arm with hydraulic shock absorbers.

The ‘Liberty’ was not a great commercial success; 5,292 were produced, of which 2,000 were the ‘America’ model and 3,292 ‘Sport’.

All the lots in this sale will be sold ‘as is/where is’ and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding.

Engine: Single cylinder OHV 2-stroke

Starter: Kick-starter

Bore & stroke: 39 x 42 mm

Compression ratio: 1 : 7.5

Engine Capacity: 47.75cc

Maximum power: 1.5 bhp [HP] @ 4,500 rpm

Valve: OHV (Overhead Valves)

Valves per cylinder: 2

Carburettor: Dell O’rto 14/9/2

Cooling system: Air cooled

Ignition type: flywheel-magneto

Lubrication: Wet sump forced circulation with mechanical gear pump

Transmission: Gear primary, chain final

Clutch: Cable operated with multiple wet disk in oil bath

Gearbox: 3 speeds handlebar mounted selector

Throttle: Cable operated

Frame type: open cradle frame and pressed steel

Front Suspension: telescopic fork and shock absorbers

Rear Suspension: Swingarm with hydraulic shock absorbers

Front Brake: Drum Ø 104 mm

Rear Brake: Drum Ø 104 mm

Wheelbase: 1,110 mm

Front tire: 2.00 x16”

Rear tire: 2.00 x16”

Seat: Dual seat

Fuel tank capacity: 9 litres

Fuel consumption: 1.5 liter/100 km

Top speed: 40 km/h (25 mph)

Weight: 58.5 Kg

Price: 114.000 Lira

Production numbers: 5,292 units are built

 

Litt: Legend Bike Magazine

Volume 12. no. 132, September 2003,

page 40 – 42

For more information

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