Of all the components used in this assembly the Backrest Plate is the most expensive.
Parts such as the Backrest Plate: Bolt,flange,6x22, Collar,cable Clam, Backrest Plate are included in the Vt1100c3 Shadow Aero 2000 (y) Australia Backrest Plate parts fiche.
In this schematic the "Collar,cable Clam" is used most often.