Some items from this specific schematic: Diaphragm, Reservoir, Hose, Reservoir, Bolt, Flange, Hose, Brake 4.
The lowest price component in this Rear Master Cylinder parts-list fiche is the Bolt,socket.
thirty-four components are shown in this Tzr125 1995 4jb3 Europe 254jb-300e1 Rear Master Cylinder exploded diagram.