The Square Four engine was originally designed in 1928 by Edward Turner, the man who later came up with the vertical twin for Triumph. In original form, it started out as a 500cc and was quickly ...
VINTAGE - 1905 - 1944 Due to the rarity of these and other years and models of Ariel, pricing data is still being collected. These are approximate pricing guidelines. Make sure you're protected!
VINTAGE - 1905 - 1944 Due to the rarity of these and other years and models of Ariel, pricing data is still being collected. These are approximate pricing guidelines. Make sure you're protected!
Alas, the world was changing, and with it the motorcycle market. The Ariel Square Four designed decades before, was keyed to another age, one where acceleration and all-out top speed weren’t as ...
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