On this parts fiche the Bolt,stud,8x50 is the most specified component.
Parts such as the Front Fork (cb1100rb): Fork Assy.,l.fr., O-ring,5.8x1.9, Stay,l.coupler Ho, Case Comp,l,bott are included in the Cb1100rbi Australia (13ma3b24) Front Fork (cb1100rb) parts fiche.
Of all the components used in this assembly the Fork Assy.,l.fr. is the most expensive.