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.