Parts such as the Front Wheel: Weight,balan(10g), Washer,speedomete, Weight,bal.20g, Collar,fr Wheel S are included in the Gl1500 Goldwing 1988 (j) Usa California Front Wheel parts fiche.
In this schematic the "Bolt,fr.disk 8x24" is used most often.
The lowest price component in this Front Wheel parts-list fiche is the Washer,speedomete.