The most reasonably priced component used on the Cx500c Custom 1981 (b) Germany / 27ps Rear Wheel is the Mark,spoke Plate.
A sample from the products for the Rear Wheel include: Mark,spoke Plate, Collar,fr Dist, Retainer Fr Wheel, Tire (130/90-16).
The Rear Wheel assembly is constructed from several parts from which the Wheel Comp.,rr. is the most expensive.