Nikasil is a nickel-silicon-carbide coating, and much later than the stuff used on the Scott CycAuto in the 1930s ! From memory Nikasil first appeared in bike engines in the 1960s, notably in the NSU Quickly moped engine, and adopted by many engine makers in later years. It has now been rejected by most firms because it is badly affected by fuels with a high sulphur content. It was officially introduced ‘big-time’ by the German company Mahle in 1967.
Brian
