"David Carradine and Brenda Vaccaro star in this Roger Corman produced film from 1979.  The year is 1919 and Charlie (Carradine) has just returned from the WW I in France. He wants to enter the first ever transcontinental motorcycle race from St Louis to San Francisco. The problem is, he has no money. But being a small-time con man, he is able to recruit three of his ex-army buddies to help him out and become his crew. But his buddies think he deserted them on the battlefield and are not particularily keen to join up with Charlie.."

Unavailable on DVD, but you can download the film here.  Via: / Via: MotorParade