The Cb1300 Super Four 2007 (7) European Direct Sales / St Front Brake Caliper consists of thirteen pieces with the Caliper Sub Assy, being the most expensive.
Some items from this specific schematic: Screw, Bleeder, Caliper Sub Assy,, Cap,bleeder, Seal,joint.
On this parts fiche the Seal Set,piston is the most specified component.