1958 Ariel 4G Square Four Mark II. Picture credits - Sohclassicas.blogspot.no.
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General information |
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Motorcycle name
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Ariel 4G Square Four Mark II |
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Year
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1958 |
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Category
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Allround |
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Rating
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Do you know this bike?
Click here to rate it. We miss 2 votes to show the rating. |
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Engine and transmission |
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Displacement
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995.0 ccm (60.71 cubic inches) |
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Engine type
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Square four cylinder |
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Engine details
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Double twin cylinder arranged as a square. |
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Power
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45.0 HP (32.8 kW)) @ 5500 RPM |
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Top speed
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160.0 km/h (99.4 mph) |
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Compression
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6.0:1 |
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Bore x stroke
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65.0 x 78.0 mm (2.6 x 3.1 inches) |
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Valves per cylinder
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2 |
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Fuel system
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Carburettor. SU MC2 carburettor with air cleaner |
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Fuel control
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Overhead Valves (OHV) |
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Lubrication system
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Dry sump with dual oil pump. |
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Cooling system
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Air |
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Gearbox
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4-speed |
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Transmission type
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Chain (final drive) |
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Clutch
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Dry, 3-plate |
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Fuel consumption
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3.04 litres/100 km (32.9 km/l or 77.38 mpg) |
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Greenhouse gases
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70.5 CO2 g/km. (CO2 - Carbon dioxide emission) |
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Chassis, suspension, brakes and wheels |
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Frame type
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Full cradle |
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Front suspension
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Oil damped telescopic fork |
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Rear suspension
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Plunger-link spring |
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Front tire
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3.25-19 |
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Rear tire
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4.00-18 |
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Front brakes
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Expanding brake (drum brake) |
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Diameter
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178 mm (7.0 inches) |
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Rear brakes
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Expanding brake (drum brake) |
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Diameter
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203 mm (8.0 inches) |
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Wheels
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Wire spoked. Dunlop tyres. |
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Physical measures and capacities |
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Weight incl. oil, gas, etc
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197.3 kg (435.0 pounds) |
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Overall length
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2184 mm (86.0 inches) |
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Overall width
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686 mm (27.0 inches) |
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Ground clearance
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140 mm (5.5 inches) |
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Wheelbase
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1422 mm (56.0 inches) |
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Fuel capacity
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18.93 litres (5.00 US gallons) |
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Oil capacity
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3.40 litres (3.59 US quarts) |
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Other specifications |
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Color options
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Deep red |
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Starter
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Kick |
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Light
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7.5 inch, 30 Watt headlamp. |
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Comments
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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. |
| Update specs | Report missing specs or required updates. |
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Further information |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Ask questions | Join the 58 Ariel 4G Square Four Mark II discussion group or the general Ariel discussion group. |
| Related bikes | List related bikes for comparison of specs. |
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