By Tom White via : www.motocrossactionmag.com
action pictures via : http://brmcrae.geo.net.au
By the late 1960’s, many of the European motocross manufacturers had started building larger-bore two-stroke machines to compete in the premier 500cc class. The British four-stroke machines were no longer omnipotent in motocross, and the Czechoslovakian CZ brand had been first to capitalize on the booming two-stroke market with the twin-port CZ360. Factory CZ rider Paul Friedrichs rewarded them with 500cc World Motocross Championships in 1966, ’67 and ’68.