Parts such as the Rear Brake: Bolt, Button, Boot 2, Caliper Assy, Rear 2, Bolt are included in the Xg250 2005 4d61 Norway 1d4d6-300e1 Rear Brake parts fiche.
The Yamaha REAR BRAKE has sixteen products enlisted in the schematic.
The most reasonably priced component used on the Xg250 2005 4d61 Norway 1d4d6-300e1 Rear Brake is the Bolt, Button.