 His reputation grew as a builder of four-stroke motocross bikes that were capable of competing with the dominant two-stroke bikes.In the mid-1970s, the CCM racing team achieved respectable results in the 500 cc Motocross World Championship, with rider John Banks placing in the top five several times.Initially powered by BSA engines, the firm used Rotax engines during the 1980s and 1990s when production reached a peak of 3,500 annually.