Velocette MAC
Pre-war model (1936)
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Make Model | Velocette MAC (post war) |
Year | 1946 - 59 |
Production | 25 000 units |
Engine | Single cylinder, OHV, 4-stroke |
Capacity | 349 cc / 21.3 cub in |
Bore x Stroke | 68.5 x 96 mm |
Compression Ratio | 6.75:1 (from 1951) |
Cooling System | Air cooled |
Carburetor | Amal needle-type |
Lubrication | Dry sump |
Exhaust | Single, megaphone chrome silencer |
Ignition | Lucas K2F magneto |
Starting | Kick start |
Max Power | 11 kW / 15 hp @ 6300 rpm |
Clutch | Three-plate |
Transmission | 4 Speed |
Final Drive | Chain |
Frame | Single top and front down tubes and twin tube cradle |
Wheelbase | 1276 mm / 50.25 in. |
Seat height | 700 mm / 27.5 in. |
Front Suspension | Pre war: Webb girder style Post war: Air-sprung Dowty Oleomatic forks |
Rear Suspension | Hydraulic shocks |
Front Brakes | 7 in., drum |
Rear Brakes | 6 in., drum |
Front Wheel | 19 in., spokes |
Rear Wheel | 19 in., spokes |
Front Tyre | 3.25 x 19 in |
Rear Tyre | 3.25 x 19 in |
Dry Weight | Pre war: 130 kg / 280 lbs Post war: 161 kg / 355 lbs |
Fuel Capacity | 11.4 L / 3 US gal |
Top Speed | 121 km/h / 75 mph |
Colours | Black/chrome |
Source | Wikipedia |
Post war model (1953)
The Velocette MAC is a British motorcycle made by Velocette. A reliable single-cylinder, the MAC coped well with the low-grade post war petrol and was a popular commuter and touring motorcycle. Although they started as innovators, Velocette failed to keep pace with developing technology and production ended in 1959.
The first version of the Velocette MAC was launched in 1933 and was developed from the overhead valve Velocette MOV 250cc, which suffereed from reliability problems. The single-cylinder engine was enlarged 349 cc and could comfortably reach 75 mph (121 km/h). The early MAC weighed 280 lb (130 kg) and had girder front forks.[3] The Velocette MAC was launched in 1933 and had a 350 cc single-cylinder engine which could reach 75 mph (121 km/h).
In October 1939 a Velocette MAC was purchased by the British War Office Army Mechanisation Experimental Establishment (MEE) at Cove in Hampshire for testing its suitability for military use. As well as British observers there were also representatives of the French Army present. The tests were successful but a number of modifications were suggested and in 1940 the Velocette MAC was modified into a military specification. Velocette's first order for the military version was from the French Government but the contract for 1,200 motorcycles was cancelled and only a few were delivered before the French were overrun by the advancing German Army. The British War Department asked for some further modifications and took over the French order in June 1940. The Velocette was designated the MAC (WD), the WD coming from "War Department", although it was often referred to as the MDD as this was the prefix for the serial numbers. The 'missing' WDs |