How about this from the 1970 Grand Prix motocross season?
This promotional film produced by Suzuki about their 1970 Grand Prix motocross season was acquired by director Todd Huffman and Pipeline Digital Media (PDM) from ISDT legend and AMA Hall of Famer Billy Uhl and his father Herb Uhl in its original 16mm format.
They had it because they were Suzuki dealers in Boise, Idaho. There are some versions of it in existence online or in DVD format but nothing of this quality.
Photo by Lee Sutton
Find BikesportNZ.com on FACEBOOK here