The component with the lowest price in the TIRES schematic is the Nipple-spoke.
The thirteen Kmx125-a3 1988 Europe Uk Gr It Nr St Tires component parts are all listed in this schematic.
Some items from this specific schematic: Band-rim,3.00/4.10-18, Spoke-inner,fr,239mmx, Rim,fr,1.60x21e7j,sil, Rim,rr,1.85x18e7j.