1932 Ariel Square Four 4F 600cc 4 Cylinder Motorcycle Start Up
Wednesday, March 11, 2020
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The Square Four is a motorcycle produced by Ariel between 1931 and 1959, designed by Edward Turner, who devised the Square Four engine in 1928. At this time he was looking for work, showing drawings of his engine design to motorcycle manufacturers. source: wikipedia/image: classic-motorcycle.com The early engine with “two transverse crankshafts” was essentially a pair of ‘.
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