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1951 Ariel 4G Square Four Mark I Specs

General İnformation

Model Ariel 4G Square Four Mark I
Year 1951
Category Allround

Engine and transmission

Displacement 995.00 ccm (60.71 cubic inches)
Engine type Double twin cylinder arranged as a square.
Power 35.00 HP (25.5 kW)) @ 5500 RPM
Top speed 144.8 km/h (90.0 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
Exhaust system Dual two-into-one

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)
Seat Solo seat

Physical measures and capacities

Dry weight 197.0 kg (434.3 pounds)
Power/weight ratio 0.1777 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)

Other specifications

Color options Red/chrome
Starter Kick
Electrical 6 Volt battery.
light 30 Watt headlamp.
Comments Also called ´Squariel´. Designed by Edward Turner.
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