As I’m sure you’ll agree, today’s custom motorcycle scene is a global phenomenon. But if you had to pinpoint the birth of it all, surely it started with returning servicemen in the post World War II period who bought up army surplus bikes on both sides of the Atlantic and bobbed and chopped their way to individuality. But what about the pre war machines? Or those that were built for the war effort with large sums of government money thrown at the manufacturers to get an advantage over what the adversary was creating? Enter Russia’s ‘Motorworld by V. Sheyanov’ – a collection of specially developed military motorcycles with engines over 800 cc, sidecar-wheel driven motorcycles, and the odd 4-cylinder. Today, Motorworld’s representative, Peter Moskovskikh, brings us one of the true prizes of his collection; the iconic German built Mars A20, which began production in 1920. With only 1000 units produced over a twelve-year run, this bike remains a certified classic of the period.