British Motorcycles


Slade-JAP was a motorcycle produced between 1921 and 1922, in Manchester.

  • 1921 The first machine was advertised with the advice to 'Order at once to beat the rush'. Launched mid-year, it was nothing special and had a 292cc or 346cc sv JAP engine, Albion two-speed gearbox and chain-cum-belt drive. It was much like many others of the times.
  • 1922 'The last word in Lightweights' was the slogan that year. Shortly after that, the machine disappeared from the market.

Sources Grace's Guide

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Allen Motorcycle Museum
Allen Motorcycle Museum
Private museum in Boston, MA, with many highly collectable vintage motorcycles for sale.