The Ariel Square Four was one of the most glamorous and best known British motorcycles. In production for 27 years, it was a mainstay in Ariel’s line of motorcycles.
Its story begins almost 80 years ago when, legend has it, a young engineer named Edward Turner — later to find fame as boss of Triumph — sketched a “square four” engined motorcycle on the back of a cigarette pack. Turner offered his design to a string of bike manufacturers before being hired by Ariel in 1928. The rest, as they say, is history.
Here are two short videos we found that demonstrate the sound and beauty of the Ariel Square Four: