A sample from the products for the E-12 Shift Drum - Spindle include: Bolt,hex 6x25, Cam,gear.shift, Circlip,ex,14, Fork,center.gear.
The Ball,steel.,8 is the lowest priced item on this E-12 Shift Drum - Spindle schematic.
On this parts fiche the Washer, Thrust, 1 is the most specified component.