Velocette Venom Thruxton (1965-70)

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.

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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