The most reasonably priced component used on the Gz250 2000 (y) (e01) Rear Wheel is the Spring(l:34).
In this schematic the "Bolt(10x40)" is used most often.
Parts such as the Rear Wheel: Rim,rr Wheel(15xmt3.00), Protector,whl Inr Tube, Spring(l:34), Balancer,wheel (b) are included in the Gz250 2000 (y) (e01) Rear Wheel parts fiche.