Parts such as the Rear Wheel: Axle,rear, Bracket,rr,caliper, Nut, Spacer,rr Axle,r are included in the Gs500eu 1990 (l) Germany (e22) Rear Wheel parts fiche.
The Nut is the cheapest item from this partsfiche.
The Absorber,rr Hub Shock is the most widely applied product in the GS500EU 1990 (L) GERMANY (E22) REAR WHEEL ( five times ).