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Ariel 4G Square Four Mark II 1958


1958 Ariel 4G Square Four Mark II specifications, pictures, reviews and rating

1958 Ariel 4G Square Four Mark II
1958 Ariel 4G Square Four Mark II. Picture credits - Sohclassicas.blogspot.no. Submit more pictures.
 
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1958 Ariel 4G Square Four Mark II
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General information
Model:Ariel 4G Square Four Mark II
Year:1958
Category:Allround
Rating:Do you know this bike?
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Engine and transmission
Displacement:995.00 ccm (60.71 cubic inches)
Engine type:Square four cylinder
Engine details: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 with air cleaner
Fuel control:Overhead Valves (OHV)
Lubrication system:Dry sump with dual oil pump.
Cooling system:Air
Gearbox:4-speed
Transmission type,
final drive:
Chain
Clutch:Dry, 3-plate
Fuel consumption:3.04 litres/100 km (32.9 km/l or 77.38 mpg)
Greenhouse gases:70.5 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis, suspension, brakes and wheels
Frame type:Full cradle
Front suspension:Oil damped telescopic fork
Rear suspension:Plunger-link spring
Front tyre:3.25-19
Rear tyre:4.00-18
Front brakes:Expanding brake (drum brake)
Front brakes diameter:178 mm (7.0 inches)
Rear brakes:Expanding brake (drum brake)
Rear brakes diameter:203 mm (8.0 inches)
Wheels:Wire spoked. Dunlop tyres.
Physical measures and capacities
Weight incl. oil, gas, etc:197.3 kg (435.0 pounds)
Overall length:2,184 mm (86.0 inches)
Overall width:686 mm (27.0 inches)
Ground clearance:140 mm (5.5 inches)
Wheelbase:1,422 mm (56.0 inches)
Fuel capacity:18.93 litres (5.00 gallons)
Oil capacity:3.40 litres (0.22 quarts)
Other specifications
Color options:Deep red
Starter:Kick
Light:7.5 inch, 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. Sidecar option.
Further information
Ask questionsJoin the 58 Ariel 4G Square Four Mark II discussion group or the general Ariel discussion group.
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