Velocette Venom Scrambler
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Make Model | Velocette Venom Scrambler |
Year | 1958 |
Engine | Single cylinder, 4-stroke |
Capacity | 499 cc / 30.5 cub in |
Bore x Stroke | 86 x 86 mm |
Compression Ratio | 8.75:1 |
Cooling System | Air cooled |
Lubrication | Dry sump |
Carburetor | Amal 10TT9 Monobloc |
Exhaust | Single |
Spark Plug | Champion N3 or N4 |
Ignition | BTH racing magneto |
Starting | Kick start |
Max Power | 28.7 kW / 39 hp @ 6200 rpm |
Transmission | 4 Speed constant mesh, close ratio |
Gear Ratios | 1st 16.65 / 2nd 11.41 / 3rd 8.58 / 4th 7.2:1 |
Final Drive | Chain |
Frame | Tubular cradle, rear sub-frame detachable |
Dimensions | Length: 2260 mm / 89.0 in Width: 890 mm / 34.5 in Height: 1090 mm / 43.0 in |
Wheelbase | 1365 mm / 53.75 in |
Ground Clearance | 165 mm / 6.5 in |
Seat Height | 838 mm / 33 in |
Front Suspension | Telescopic fork with hydraulic damping and an offset wheel spindle |
Rear Suspension | Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling |
Front Brakes | 7 x 1 in. drum |
Rear Brakes | 7 x 1 in. drum |
Front Wheel | WM1 x 21 in |
Rear Wheel | WM3 x 19 in |
Front Tyre | 3.25 x 19 in or 3.00 x 21 in knobbies, Avon or Dunlop |
Rear Tyre | 4.00 x 19 in knobbies, Avon or Dunlop |
Dry Weight | 152 kg / 335 lbs |
Fuel Capacity | 11.35 L / 3 US gal |
Colours | Black with silver tank |
Source | Wikipedia,Southriders-mc |
Before the sixties, motorcycle manufacturers usually used the same chassis for road and off-road bikes. Dirt bikes were often modified from road or race bikes.
The Velocette development team built Venom off-road motorcycles, which were sent to the United States for evaluation in enduro events. Built with the slogan "A winner in every respect", the Scrambler had a specially lightened frame, light alloy mudguards and high-level enduro-style exhaust pipes. A special off-road Venom was named the Endurance. Fitted with the Venom engine, it had a 21-inch front wheel, high handlebars and a small fuel tank, as well as full lighting so that it could be legally used on the roads.
The Velocette scrambler was a factory-made machine based on the 500 MSS. The standard power of 18 hp was doubled to 35 hp by using of certain components from the more powerful Venom: in particular the camshaft, magneto and carburettor.