Director Steve Carver and actors L.Q. Jones and David Carradine all later worked on Lone Wolf McQuade (1983).
The Charlie Swattle (David Carradine) character is a veteran of World War One. The war ran from 1914-1918, with American involvement from 1917 on, until the end of the engagement.
The script was written with Steve McQueen in mind to play Charlie Swattle who in the end was cast with actor David Carradine.
The period of principal photography on this picture was a shoot that ran for about three weeks.
Vintage motorcycles were sourced to the production by some of the USA's biggest collectors. These included Herb Ottaway, Jerry Ottaway and Bud Ekins the latter of whom was a veteran Hollywood stuntman who also worked in stunts on the picture.