The component with the lowest price in the REAR CUSHION schematic is the Joint,pipe.
Parts such as the Rear Cushion: Collar,bush, Bolt,flange,10x11, Pipe,drain, Damper Comp.,rr. are included in the Vfr750r Rc30 1989 (k) Sweden Rear Cushion parts fiche.
In this schematic the "Oil Seal 17x27x5" is used most often.