Velocette Valiant (1957-64)

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The Velocette Valiant was produced between 1957 and 1964, with only 1,600 units made. It had a four-stroke flat-twin cylinder engine with a capacity of 192cc and a compression ratio of 8.5:1, and was cooled by air. Lubrication was achieved by wet sump and the bike had 2 x Amal 363 monobloc carburettors. The twin exhaust had torpedo-shaped silencers and the ignition was powered by a coil with a 6V, 42W battery. The Valiant had a kick start and a maximum power of 8.8kW at 6000 rpm (from 1958, this was increased to 7000 rpm). The bike featured a dry, three-plate clutch and a four-speed constant mesh transmission with final drive by shaft. The frame was a duplex design with a single top tube and the bike had a wheelbase of 1300mm and a seat height of 737mm. The Valiant had 5 x 1” drum brakes front and rear, and spoked wheels with 3.25 x 18” tyres. The fuel tank had a capacity of 13.6L and the bike weighed 115.7kg. It was available in black and green and had a recommended top speed of 97km/h.

Technical specifications:

Make Model: Velocette Valiant

Year: 1957 – 64


Production: 1600 units
Engine: Four stroke, flat twin cylinder
Capacity: 192 cc / 11.7 cub in
Bore x Stroke: 50 x 49 mm
Compression Ratio: 8.5:1
Cooling System: Air cooled
Lubrication: Wet sump
Carburetor: 2 x Amal 363 monobloc
Exhaust: Twin with torpedo shaped silencers
Ignition: Coil
Battery: 6V, 42W
Starting: Kick start
Max Power: 8.8 kW / 12 hp @ 6000 rpm (from 1958 @ 7000 rpm)
Clutch: Dry, three-plate
Transmission: 4 Speed constant mesh

Final Drive: Shaft
Gear Ratio: 1st 2.078 / 2nd 1.353 / 3rd 1.0 / 4th 0.739:1
Frame: Duplex frame with single top tube
Wheelbase: 1300 mm / 51.2 in
Seat height: 737 mm / 29 in
Ground Clearance: 152 mm / 6 in
Front Suspension: Telescopic fork
Rear Suspension: Woodhead-Monroe springs with hydraulic damping
Front Brakes: 5 x 1″ drum
Rear Brakes: 5 x 1″ drum
Wheels: Spoked
Front Tyre: 3.25 x 18″
Rear Tyre: 3.25 x 18″
Fuel Capacity: 13.6 L / 3.6 US gal
Dry Weight: 115.7 kg / 255 lbs
Recommended Top Speed: 97 km/h / 60 mph
Colours: Black, green
Source: Rider Magazine

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