The most reasonably priced component used on the Zx1000a1 Gpz1000rx 1986 Europe Fr Uk Fg Gr It Nr Sd Sp St Front Brake is the Cap-breather.
Some items from this specific schematic: Caliper-assy,fr,rh, Holder-comp-caliper,f, Disc,fr,rh, Spring,pad Stopper.
The Front Brake assembly is constructed from several parts from which the Caliper-assy,fr,lh is the most expensive.