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1954 Ariel 4G Square Four Mark II Specs

General İnformation

Model Ariel 4G Square Four Mark II
Year 1954
Category Allround

Engine and transmission

Displacement 995.00 ccm (60.71 cubic inches)
Engine type Double twin cylinder arranged as a square.
Power 45.00 HP (32.8 kW)) @ 5500 RPM
Top speed 160.0 km/h (99.4 mph)
Compression 6.0:1
Bore x stroke 65.0 x 78.0 mm (2.6 x 3.1 inches)
Valves per cylinder 2
Fuel system Carburettor. SU MC2 carburettor
Fuel control Overhead Valves (OHV)
Lubrication system Dry sump with dual oil pump.
Cooling system Air
Gearbox 4-speed
Transmission type, final drive Chain

Chassis, suspension, brakes and wheels

Frame type Tubular single loop
Front suspension Oil damped telescopic fork
Rear suspension Plunger-link spring
Frame 3.25-19
Front tyre 3.25-19
Rear tyre 4.00-18
Front brakes Expanding brake (drum brake)
Front brakes diamete 203 mm (8.0 inches)
Rear brakes Expanding brake (drum brake)
rear_brakes_diameter 178 mm (7.0 inches)

Physical measures and capacities

Dry weight 193.0 kg (425.5 pounds)
Power/weight ratio 0.2332 HP/kg
Overall length 2,083 mm (82.0 inches)
Wheelbase 1,422 mm (56.0 inches)
Fuel capacity 16.00 litres (4.23 gallons)
Oil capacity 3.40 litres (0.22 quarts)

Other specifications

Color options Red/chrome
Starter Kick
light 30 Watt headlamp.
Comments Also called ´Squariel´. Designed by Edward Turner. Mark II has separate barrels, a re-designed cylinder head with four separate exhaust pipes from two cast-aluminium manifolds and a rocker-box combined with the inlet manifold.
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