What is the engine displacement of the 1953 Ariel 4 G Square Four Mark I?

The 1953 Ariel 4 G Square Four Mark I has an engine displacement of 995.0 ccm (60.71 cubic inches).

What is the top speed of the 1953 Ariel 4 G Square Four Mark I?

The 1953 Ariel 4 G Square Four Mark I has a top speed of 144.8 km/h (90.0 mph).

How much does the 1953 Ariel 4 G Square Four Mark I weigh?

The 1953 Ariel 4 G Square Four Mark I has a dry weight of 197.0 kg (434.3 pounds).

1953 Ariel 4 G Square Four Mark I Price, Specs, Review

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Review

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The 1953 Ariel 4 G Square Four Mark I showcases an early version of Ariel's distinctive engine design. The 995cc square four engine provided a unique and smooth riding experience, though with a slightly lower top speed of 90 mph. Weighing in at 434.3 pounds, it was a robust machine built for touring. The four-speed gearbox offered a range of gearing options for various riding conditions. The ergonomics of the Mark I prioritized rider comfort with an upright riding position suitable for longer distances. The 4.23 US gallon fuel tank provided decent range between refueling stops. The front suspension utilized an oil-damped telescopic fork, offering a degree of improved handling. Braking was handled by expanding drum brakes, consistent with the technology of the time. This motorcycle appeals to vintage motorcycle enthusiasts and collectors who appreciate the unique engineering and classic styling of British motorcycles. It represents an earlier stage in the development of the Square Four engine.

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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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