On this parts fiche the Bolt (23x) is the most specified component.
Parts such as the Rear Wheel: Lever, Camshaft, Spoke Set, Rear, Hub, Rear, Sprocket, Driven (44t) are included in the Yz80 1986 1lr Europe 261lr-300e1 Rear Wheel parts fiche.
The Rear Wheel is made up of components including this Rim (1.60-14)(39k) which is the most expensive.