On this parts fiche the O Ring,69.8x2.0 is the most specified component.
Parts such as the Cylinder: Dowel,pin,10x16, Dowel,pin,12x20, Gasket,cylinder (mca), O Ring,69.8x2.0 are included in the Cb1100rcii Australia England France Germany Netherlands Cylinder parts fiche.
The Honda CYLINDER has seven products enlisted in the schematic.