ABC Motorcycles

ABC c.1920 Luneville

Courtesy Collection de Maurice Chapleur

Collection de Maurice Chapleur

Collection de Maurice Chapleur

Of the 230 machines in the collection some sixty motorcycles date from before 1914. It is the most important collection known in the world of these two- and three-wheeled pioneers. The Chapleur collection also contains many items related to the practice and maintenance of such vehicles. More information...

ABC 1920

Type A 4 speed 5cv - HO flat-twin. Suspension front and rear with spring leaf, chain transmission, kick start. Manufactured by Gnome & Rhone (Snecma) after the war of 1914-1918 (Sopwith licence).

HO Twin

Horizontally Opposed Twin

Examples include BMW, Zundapp and Douglas HO Twins have conrods running on a common crank, with one on the exhaust stroke and the other on inlet.

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