Parts such as the Rear Wheel: Retainer,bearing, Nut,hex 10mm, Spoke B 9x158, Sprocket,final are included in the Cl350 Scrambler K0 Australia Rear Wheel parts fiche.
The Nut,hex.,10mm is the lowest priced item on this Rear Wheel schematic.
The Rear Wheel assembly is constructed from several parts from which the Hub,rear Wheel is the most expensive.