The component with the lowest price in the CYLINDER GT80G schematic is the Ybs66-6 Washer, Plain.
The Cylinder Gt80g is made up of components including this Cylinder which is the most expensive.
Parts such as the Cylinder Gt80g: Plug, Spark (ngk B7hs), Gasket, Cylinder (mca), Head, Cylinder, Ybs66-6 Washer, Plain are included in the Gt80 1980 Usa Cylinder Gt80g parts fiche.