Stone is a 1974 Australian film, produced and directed by Sandy Harbutt. It was a low budget movie, written by Sandy Harbutt and Michael Robinson.

Police officer Stone goes undercover with the Gravediggers bikie gang, to find out who is murdering their members, one by one.

The film stars Ken Shorter and features Rebecca Gilling, Bill Hunter and Helen Morse. Motorcycles featured include the legendary Kawasaki Z1(900) http://en.wikipedia.org/wiki/Kawasaki_Z900/Z1. Stone initially rides a Norton.

Members of the Grave Diggers Motorcycle Club are being knocked off one by one, and someone needs to find out why! Sandy Harbutts timeless Australian cult film about a bunch of regegades riding Kawasaki 900s. Written by Andrew Howard