Velocette Viper
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Velocette Viper | |
Manufacturer | |
---|---|
Production | 1955 - 68 |
Engine | Four stroke, single cylinder |
Compression ratio | 8.0:1 |
Top Speed | 91 mph |
Ignition | Belt driven dynamo, after 1962: Lucas system |
Spark Plug | KLG FE100 / Champion N3 / NGK B8ES, Lodge 3HLN |
Battery | 6V |
Transmission | 4 Speed constant mesh, close ratio |
Suspension | Front: Telescopic fork with hydraulic compression and rebound damping Rear: Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling, adjustable |
Brakes | Front: 7.5 x 1.5 in., drum Rear: 7 x 1 in., drum |
Front Tire | 3.25 x 19 in |
Rear Tire | 3.25 x 19 in |
Wheelbase | 1353 mm / 53.25 in |
Weight | 165 kg / 364 lbs (dry), |
Fuel Capacity | 13.6 L / 3.6 US gal |
Manuals | Service Manual |
It could reach a top speed of 91 mph.
Engine[edit | edit source]
The engine was a Air cooled cooled Four stroke, single cylinder. The engine featured a 8.0:1 compression ratio.
Drive[edit | edit source]
Power was moderated via the Dry, three-plate.
Chassis[edit | edit source]
It came with a 3.25 x 19 in front tire and a 3.25 x 19 in rear tire. Stopping was achieved via 7.5 x 1.5 in., drum in the front and a 7 x 1 in., drum in the rear. The front suspension was a Telescopic fork with hydraulic compression and rebound damping while the rear was equipped with a Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling, adjustable. The Viper was fitted with a 13.6 L / 3.6 US gal fuel tank. The bike weighed just 165 kg / 364 lbs. The wheelbase was 1353 mm / 53.25 in long.
Photos[edit | edit source]
Overview[edit | edit source]
Make Model | Velocette Viper |
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Year | 1955 - 68 |
Engine Type | Four stroke, single cylinder |
Displacement | 349 cc / 30.5 cub in |
Bore X Stroke | 72 x 86 mm |
Compression | 8.0:1 |
Cooling System | Air cooled |
Lubrication | Wet sump |
Exhaust | Single |
Spark Plug | KLG FE100 / Champion N3 / NGK B8ES, Lodge 3HLN |
Battery | 6V |
Ignition | Belt driven dynamo, after 1962: Lucas system |
Starting | Kick start |
Max Power | 25 kW / 28 hp @ 7000 rpm |
Clutch | Dry, three-plate |
Transmission | 4 Speed constant mesh, close ratio |
Final Drive | Chain |
Wheelbase | 1353 mm / 53.25 in |
Front Suspension | Telescopic fork with hydraulic compression and rebound damping |
Rear Suspension | Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling, adjustable |
Front Brakes | 7.5 x 1.5 in., drum |
Rear Brakes | 7 x 1 in., drum |
Front Wheel | WM2 x 19 |
Rear Wheel | WM2 x 19 |
Front Tire | 3.25 x 19 in |
Rear Tire | 3.25 x 19 in |
Turning Radius | 4.9 m / 16 ft. |
Rake | 27° |
Fuel Capacity | 13.6 L / 3.6 US gal |
Dry Weight | 165 kg / 364 lbs |
Top Speed | 91 mph |
Colours | Willow green |
Source | Wikipedia |