The component with the lowest price in the REAR WHEEL / DRIVEN SPROCKET schematic is the Nut.hex 10mm.
This part-list fiche shows all the components that make up the Cb500k1 Four 1972 Usa Rear Wheel / Driven Sprocket .
The Cb500k1 Four 1972 Usa Rear Wheel / Driven Sprocket consists of thirty-seven pieces with the Hub,rear Wheel being the most expensive.