The twenty-six Cb1300 2008 (8) Singapore / Two Throttle Body component parts are all listed in this schematic.
The lowest price component in this Throttle Body parts-list fiche is the Tube,3.5x50mm.
Some items from this specific schematic: Joint,iacv, Pipe Comp.,fuel(a, Bolt-wash.,5x20, Screw,torx.