The Bolt(6x50) is the lowest priced item on this Rear Cylinder Head (vl800c E3) schematic.
The Rear Cylinder Head (vl800c E3) is made up of components including this Head Assy,cylinder Rr which is the most expensive.
Some items from this specific schematic: Cap,inspection Intake, Guide,valve(os:0.3), Cap,cylinder Head Cover Rr, Cap,cylinder Head Cover Rr,l.