Segment: Clasic
Production years: 1965, 1966, 1967, 1968, 1969, 1970
5 Photos
The following year this went into production as the Velocette Thruxton. Also known as the Venom Thruxton, this aimed to fill the gap left by the demise of the BSA Gold Star and was named after the Thruxton Circuit race track on a former wartime airfield in Hampshire. The Velocette Thruxton was a true racer, with a full race specification cylinder head that was gas flowed by hand to accommodate extra-large valves and a downdraught inlet port. The Amal carburetor was so large it required a distinctive cutaway in the bottom of the fuel tank, and race cams boosted performance to up to 120 mph (190 km/h).
VELOCETTE VENOM THRUXTON 1965-1970
VELOCETTE VENOM THRUXTON 499
| engine specs | Type: | Single Cylinder, Four Stroke | Displacement: | 499 cm3 | Bore X Stroke: | 3.4x3.4 in OR 86 mm | Compression Ratio: | 9.0:1 | Horsepower: | 41/6200 KW(hp)/RPM | Torque: | 0/- lb-ft/RPM OR 0 Nm/RPM | Fuel System: | Amal 5GP2 Carburetor |
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| transmission specs | Gearbox: | 4-Speed constant mesh, close ratio | Clutch: | Dry, three-plate | Primary Drive: | - | Final Drive: | Chain |
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| chassis specs | Frame: | Single down-tube and twin bottom rails | 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 Brake: | Drum | Rear Brake: | Drum |
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| dimension specs | Overall Length: | 83.9 in OR 2131 mm | Overall Width: | 27.6 in OR 701 mm | Seat Height: | 30.5 in OR 775 mm | Wheelbase: | 53.7 in OR 1364 mm | Ground Clearance: | 5.5 in OR 140 mm | Weight: | 408 lbs OR 185 kg | Fuel Capacity: | 5.1 gallons OR 19.3 L |
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| tyres specs | Front: | 3.00 x 19" | Rear: | 3.50 x 19" |
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| power system specs | Power pack: | - | Nominal Capacity: | - | Maximum Capacity: | - | Charger type: | - | Charging time (normal): | - | Charging time (quick): | - | Range: | - |
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