The component with the lowest price in the CRANKCASE (KM100-A3-) schematic is the Pin-dowel,8x16.
The most expensive part in this assembly is the Crankcase,lh.
This part-list fiche shows all the components that make up the Km100-a6 Km100 1980 Usa Canada / Mph Kph Crankcase (km100-a3-) .