The Shifter 1 is made up of components including this Shift Cam Assy which is the most expensive.
Parts such as the Shifter 1: Pin 137185520100, Screw,pan Head (646), Pin 2781855200, Ball are included in the At2m Motocross 1973 Usa Shifter 1 parts fiche.
Of all the components that make up this Shifter 1 the Ball has the lowest price.