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This model, commonly known as the Square Four, first appeared at the Olympia Show in November 1930. It was remarkable for its unorthodox four-cylinder engine.
The frame and other components were substantially similar to those of the established machines in the Ariel range. The smooth, zestful acceleration of the Square Four was a revelation in comparison with the single-cylinder machines so popular at the time. A 599cc was introduced for 1932 and a 997cc version in 1937.
|Manufacturer||Ariel Motors Ltd|
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