J.A.Prestwich Industries

J.A.P might not need any further or deeper presentation, but anyway.

English engineering company and engine builder,  founded in 1895, defunct in 1965.

Made a wide range of SV and OHV engines, for motorcycles, stationary engines and cars. Both single cylinder av V-twin engines.

For me personally, I recognize the JAP brand mainly from their succes on the Speedway tracks.