Velocette Viper Clubman (1960-68)

The Velocette Viper Clubman is a four-stroke, single-cylinder, OHC motorcycle with a capacity of 349 cc and a compression ratio of 9.3:1. It is air-cooled and has a wet sump lubrication system with an Amal TT Monobloc carburetor and a single megaphone silencer exhaust. It has a Miller type D6 ignition with auto volt regulations and a 6V, 60W battery with kick start. The Viper Clubman has a maximum power of 25 kW or 28 hp at 7000 rpm and a clutch that is dry with three plates. It has a 4-speed constant mesh close ratio transmission and a final drive chain with gear ratios of 1st 10.45, 2nd 7.94, 3rd 6.03 and 4th 5.5:1. The dimensions are 2130mm length, 700mm width, and 990mm height with a wheelbase of 1365mm and seat height of 775mm. The front suspension is a telescopic fork with hydraulic compression and rebound damping, while the rear suspension has Woodhead-Monroe springs with hydraulic damping, which is later replaced by Armstrong and Girling adjustable suspension. The front and rear brakes are drum brakes with light alloy rims and spokes of WM2 x 19 for both front and rear wheels. The tyres are 3.25 x 19 in, ribbed for front and studded for the rear. The fuel capacity is 19.3 L or 5.1 US gal with a dry weight of 181 kg or 399 lbs. The Viper Clubman came in three colours: black/chrome, red/black and white/black.

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Technical specifications:

Make Model: Velocette Viper Clubman

Year: 1960 – 68

Engine: Four stroke, single cylinder, OHC

Capacity: 349 cc / 30.5 cub in

Bore x Stroke: 72 x 86 mm

Compression Ratio: 9.3:1

Cooling System: Air cooled

Lubrication: Wet sump

Carburetor: Amal TT Monobloc

Exhaust: Single, megaphone silencer

Spark Plug: KLG FE100 / Champion N3 / NGK B8ES, Lodge 3HLN

Battery: 6V, 60W

Ignition: Miller type D6 with auto volt regulations

Starting: Kick start

Max Power: 25 kW / 28 hp @ 7000 rpm

Clutch: Dry, three-plate

Transmission: 4 Speed constant mesh, close ratio

Final Drive: Chain

Gear Ratios: 1st 10.45 / 2nd 7.94 / 3rd 6.03 / 4th 5.5:1

Dimensions: Length: 2130 mm / 84.0 in Width: 700 mm / 27.5 in Height: 990 mm / 39.0 in 1220 mm / 48.0 in – Veeline models

Wheelbase: 1365 mm / 53.75 in

Seat Height: 775 mm / 30.5 in

Front Suspension: Telescopic fork with hydraulic compression and rebound damping

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

Wheels: Light alloy rims, spokes

Front Wheel: WM2 x 19

Rear Wheel: WM2 x 19

Front Tyre: 3.25 x 19 in, ribbed

Rear Tyre: 3.25 x 19 in, studded

Turning Radius: 4.9 m / 16 ft.

Rake: 27 degrees

Fuel Capacity: 19.3 L / 5.1 US gal

Dry Weight: 181 kg / 399 lbs

Colours: Black/chrome, Red/black, white/black

Source: Wikipedia, The Vintagent