The component with the lowest price in the Front Brake(KSF250-A15∼A17) schematic is the Cap-breather.
On this parts fiche the Bolt is the most specified component.
This part-list fiche shows all the components that make up the Ksf250-a15 Kfx250 Mojave 2001 Usa Front Brake(ksf250-a15∼a17) .