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All British (Engine) Co
The All British (Engine) Co of Weybridge, Surrey, near Brooklands
1912 Established by Ronald Charteris in Byfleet, Surrey as a producer of
1912 ABC first became involved with the production of motorcycles
when their designer Granville
Bradshaw was asked to produce some special parts for a 350cc Douglas,
owned by Les Bailey. This machine was raced at Brooklands
and late that year set a new record. A new flat-twin ohv engine was also
produced that year.
1913 A few machines were built, two of which were entered in the TT, but
both retired early.
1914 An ABC, ridden by Jack Emerson, set a new 500cc record at Brooklands
and a two-model range was launched, both with the flat-twin engine, conventional
frames and laminated leaf-spring suspension. The company moved to Hersham,
Walton-on-Thames, where they became involved with war work and also produced
a few motorcycles.
1915-1916 Those motorcycles built had an ABC four-speed gearbox,
gate-change and a sprung frame.
1919 The company was bought by Sopwith as that company attempted to diversify
its activities following World War I.
1919 Built by Sopwith at Kingston-upon-Thames, Surrey,
Granville Bradshaw designed what was to be the definitive ABC machine. The Sopwith aviation company produced the machine in
an effort to keep the 3,500 strong workforce employed when the need for aircraft had diminished strongly after the end of the war in
1918. It had a 398cc flat-twin transverse ohv engine, a four-speed gate-change gearbox and leaf-spring front and back suspension,
internal front and rear expanding brakes and a cradle frame, footboards and leg shields. A kickstarter, however, was seen as surplus to
requirements because the machine was easily push-started. It was innovative enough to cause a sensation at the annual Motor Cycle Show,
This sophisticated and advanced machine caused the company many headaches. Orders poured in, but the valve gear was troublesome and
caused production hold-ups. Production problems caused rising costs, and their initial popularity died. The machine was also very
expensive to manufacture.
1920 January. Illustrated specification of their sporting light car.
1920 In the November of that year they exhibited at the Motor Car Show
at Olympia and the White City with a lightweight car with two seats and
1921 Originally the selling price was set to £70, soon a price of £160 became realistic and later it became clear that any price under 300 pounds was bringing a loss to the manufacturer, so the price became too high. After producing somewhere in the region of 3,000 machines, Sopwith went into liquidation.
1923 Output of all ABC motorcycles in the UK came to an end.
Note: The French company Gnome and Rhone continued to build these
motorcycles under licence until 1925.
1929 They built one single-seater plane designed by A. A. Fletcher known
as the ABC Robin and flew in 1929 but was scrapped in 1932.
1951 The company continued its activities until it was absorbed into Vickers