| MODEL | VELOCETTE VENOM SCRAMBLER 1955 |
| Year | 1955 |
| Engine Type | Four stroke, single cylinder, OHV |
| Displacement / Capacity | 499 cc / 30.5 cu in |
| Bore X Stroke | 86 x 86 mm |
| Compression Ratio | 8.75:1 |
| Cooling System | Air cooled |
| Max Power | 28.7 kW / 39 hp @ 6200 rpm |
| Max Torque | — |
| Ignition | BTH racing magneto |
| Induction | Amal 10TT9 monobloc |
| Start System | Kick start |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 4 Speed constant mesh, close ratio |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Tubular cradle with detachable rear sub-frame |
| 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 x 1 in drum |
| Rear Brakes | 7 x 1 in drum |
| DIMENSION SPECS | |
| Overall Length | 2260 mm / 89.0 in |
| Overall Width | 890 mm / 34.5 in |
| Overall Height | 1090 mm / 43.0 in |
| Seat Height | 838 mm / 33 in |
| Wheelbase | 1365 mm / 53.75 in |
| Ground Clearance | 165 mm / 6.5 in |
| Dry Weight | 152 kg / 335 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25 x 19 in or 3.00 x 21 in, knobbly |
| Rear Tyre | 4.00 x 19 in, knobbly |
| FUEL SYSTEM | |
| Fuel Capacity | 11.35 Litres / 3 US gal |
| Fuel Consumption | — |
| Top Speed | — |
An off-road version of the Venom built by the factory development team and sent to the USA for enduro evaluation. It used a lightened frame, light alloy mudguards and a high enduro-style exhaust, and was sold under the slogan 'A winner in every respect'. The road-going Endurance sister model kept the Venom engine with a 21 in front wheel, small tank and full lighting.
