The Nut,master Cylinder is the lowest priced item on this Rear Master Cylinder schematic.
Of all the components used in this assembly the Cylinder Assembly,rear Master is the most expensive.
Parts such as the Rear Master Cylinder: Hose,reservoir Tank, Cap(od:10), Washer, Washer,lock are included in the Gsx1150ef 1985 (f) (e06) Rear Master Cylinder parts fiche.