The Velocette Venom Thruxton motorcycle was produced between 1965 and 1970. It featured a single cylinder, four stroke, OHV engine with a capacity of 499 cc and a compression ratio of 9.0:1, capable of producing a maximum power output of 41 horsepower at 6200 rpm. The bike was started with a kick and had a dry sump lubrication system with an Amal 5GP2 carburetor and a single, megaphone exhaust. The ignition system was a Miller D6 with an auto volt regulation, and the battery was 6V with a 60W output.
The Venom Thruxton had a four-speed constant mesh, close ratio transmission with a dry, three-plate clutch and a chain final drive. The front suspension was a telescopic fork with hydraulic damping and the rear suspension featured Woodhead-Monroe springs with hydraulic damping, which were later replaced by Armstrong and Girling and were adjustable. The bike had 7.5 x 1.5 in drum front brakes and 7 x 1 in drum rear brakes, and used WM2 x 19 wheels with 3.00 x 19 in ribbed front tires and 3.50 x 19 in studded rear tires.
The Venom Thruxton had a single down-tube and twin bottom rails frame, and had a length of 2130 mm, a width of 700 mm, and a height of 990 mm, with a wheelbase of 1365 mm and a seat height of 775 mm. The bike had a dry weight of 170 kg and a fuel capacity of 19.3 L. It had a top speed of 193 km/h and was available in black/metallic silver or deep blue/metallic silver colors.
Technical specifications:
Make Model: Velocette Venom Thruxton
| Year | 1965 – 70 |
|---|---|
| Engine | Four stroke, single cylinder, OHV |
| Capacity | 499 cc / 30.5 cub in |
| Bore x Stroke | 86 x 86 mm |
| Compression Ratio | 9.0:1 |
| Cooling System | Air cooled |
| Lubrication | Dry sump |
| Carburetor | Amal 5GP2 carburetor |
| Exhaust | Single, megaphone |
| Spark Plug | KLG FE220 / NGK B9ES |
| Ignition | Miller D6 with auto volt regulation |
| Battery | 6V, 60W |
| Starting | Kick start |
| Max Power | 31 kW / 41 hp @ 6200 rpm |
| Clutch | Dry, three-plate |
| Transmission | 4 Speed constant mesh, close ratio |
| Gear Ratios | 1st 8.4 / 2nd 6.3 / 3rd 4.83 / 4th 4.4:1 (TT close ratio optional) |
| Final Drive | Chain |
| Frame | Single down-tube and twin bottom rails |
| Dimensions | Length: 2130 mm / 84.0 in Width: 700 mm / 27.5 in Height: 990 mm / 39.0 in |
| Wheelbase | 1365 mm / 53.75 in |
| Seat Height | 775 mm / 30.5 in |
| Ground Clearance | 140 mm / 5.5 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, 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 Tyre | 3.00 x 19 in, ribbed |
| Rear Tyre | 3.50 x 19 in, studded |
| Rake | 27 degrees |
| Dry Weight | 170 kg / 375 lbs |
| Fuel Capacity | 19.3 L / 5.1 US gal |
| Fuel Consumption | 3.9 L/100 km / 25.5 km/L / 60 US mpg |
| Braking 48 km/h / 30 mph – 0 | 30.5 ft / 9.3 m |
| Turning Circle | 4.9 m / 16 ft |
| Top Speed | 193 km/h / 120 mph |
| Colours | Black/metallic silver, Deep blue/metallic silveer |
| Source | Wikipedia |
