What is the engine displacement of the 1956 Ariel 4 G Square Four Mark II?

The 1956 Ariel 4 G Square Four Mark II has an engine displacement of 995.0 ccm (60.71 cubic inches).

What is the top speed of the 1956 Ariel 4 G Square Four Mark II?

The 1956 Ariel 4 G Square Four Mark II has a top speed of 160.0 km/h (99.4 mph).

How much does the 1956 Ariel 4 G Square Four Mark II weigh?

The 1956 Ariel 4 G Square Four Mark II has a dry weight of 193.0 kg (425.5 pounds).

1956 Ariel 4 G Square Four Mark II Price, Specs, Review

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Review

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The 1956 Ariel 4 G Square Four Mark II represents the culmination of Ariel's distinctive engine design. The 995cc square four engine, a unique configuration with its paired transverse cylinders, delivers a smooth, torquey power band. With a top speed nearing 100 mph and a weight of 425.5 pounds, the Mark II offered respectable performance for its era. The four-speed gearbox and oil-damped telescopic fork provided a relatively refined riding experience for the time. Ergonomics would suit a rider of average height, with a comfortable upright position ideal for touring or leisurely rides. The 4.23 US gallon fuel tank allowed for decent range between stops. The drum brakes were typical of the period, requiring a more considered approach to stopping distances. This model appeals to vintage motorcycle enthusiasts and collectors who appreciate the unique engineering and classic styling of British motorcycles. It's a piece of history that offers a glimpse into a bygone era of motorcycling.

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License Class (EU)

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Rule of thumb: under 125cc / 15HP → A1, under 47HP → A2, above → A.

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Fuel Economy & Running Costs

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Estimated average for 995cc class: 35-50 mpg (5.0-7.0 L/100km)

⛽ Tank: 16.00 litres (4.23 US gallons)

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Insurance Class

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