Ariel Square Four Motorcycle

We buy vintage motorcycles parts inventories you are bidding on a nice original 1957 ariel square four mk2 1000.

Ariel square four motorcycle.

V twins and inline fours set both lengthwise and across the frame had been used previously but turner s new design had two vertical twins sharing a common crankcase. Influential ariel designers included val page and edward turner the last motorcycle type vehicle to carry the ariel name was a short lived three wheel. Overall a nice bike that wouldn t need too much to be a nice road bike again. 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.

Old and new logbooks large history file ready to ride. The ariel square four 4f made its debut at the 1930 olympia motorcycle show featuring an overhead camshaft 500cc with a hand shift for the burman gearbox which was integral with the crankcase. The company was sold to bsa in 1951 but the brand survived until 1967. The early engine with two transverse crankshafts was essentially a pair of across frame ohc parallel twins joined by their geared central.

Bike starts up runs and shifts. It purrs along smoothly at 60mph accelerates briskly out of roundabouts with barely a need to use its slick gearbox and feels more up to date and sophisticated than many bikes half its age. Larry horn of huntington beach california shows us his 1957 ariel square four mkii which he restored himself. Overhead camshafts and unit construction were well into the future for most firms so ariel was a real pioneer.

Same owner for over 30 years 1952 ariel square four engine number. All riding video shot with the gopro hero 3. For sale 1959 ariel square four mk11 last year of production original uk bike with original numbers 2000 miles since full engine rebuild and other ariel mods. On the open road the 1952 ariel square four is at home in modern traffic in a way that most classic british motorcycles cannot approach.

Bike needs wiring gone over needs new wiring harness.