The lowest price component in this Rear Brake parts-list fiche is the Seal-oil.
Parts such as the Rear Brake: Seal-oil, Clamp, Rotor,sensor,rr, Disc,rr are included in the Zg1400ccf Concours 14 2012 Usa / Abs Rear Brake parts fiche.
The Rear Brake is made up of components including this Caliper-sub-assy,rr,b which is the most expensive.