Parts such as the Piston: Conn-rod Assy., Conn-rod Assy., Piston (osz 0.75), Piston (osz 0.25) are included in the Gl1200i Goldwing Aspencade 1984 (e) Usa California Piston parts fiche.
On this parts fiche the Nut Conrod is the most specified component.
The lowest price component in this Piston parts-list fiche is the Pin,piston.