Parts such as the Wheels/tires: Spoke-inner,fr, Protector,bead, Spoke-inner,rr,204mmx, Protector,bead 1.60a are included in the Kx450-e9f Kx450f 2009 Usa Wheels/tires parts fiche.
On this parts fiche the Spoke-inner,fr is the most specified component.
The component with the lowest price in the Wheels/Tires schematic is the Nipple-spoke,aluminiu.