A sample from the products for the Rear Brake Caliper include: Bracket Comp,rr., Caliper Comp,rr., Screw, Bleeder, Dust Seal.
On this parts fiche the Pad Comp,rr(tt) (nas) is the most specified component.
The most reasonably priced component used on the Gl1500 Goldwing 1990 (l) France / Yb Rear Brake Caliper is the Bolt,flange,sh 6x10.