The most expensive part in this assembly is the Fork Assy,rr*nh1*.
The Bolt, Flange,6x12 is the lowest priced item on this Rear Fork - Chain Case schematic.
Parts such as the Rear Fork - Chain Case: Bolt,fork Pivot, Nut Lock 10mm, Fork Assy,rr*nh1*, Joint,drive Chain are included in the Z50gz Gorilla Australia Rear Fork - Chain Case parts fiche.