As cinder track racing gained popularity across the country and many people were rebuilding Harley-Davidson’s for cinder tracks the Motor Company decided it was time to fulfill requests to make a special model for short track racing. The News Bulletin announcement of the release of the new CAC racer stated “The short track racers we are offering are the result of much study and actual trial by our racing department. Extensive tests were conducted on the West Coast on actual tracks with outstanding short track racing stars and in competition with the best of the foreign machines. Our experimental machines came through every test with flying colors. Improvements incorporated as a result of these trials will make these new racing models even better in power and performance.”
In 1934, 20 trial CAC motorcycles and 5 spare engines were developed by the factory race department, with the guidance of famed racer Joe Petrali to compete on the speedway circuit. Only a small number of these have known to survive as most were “used up” on the track. The Harley-Davidson Archives recently acquired one of these rare machines and it is now on display in the Museum.