The Seat assembly is constructed from several parts from which the Seat-assy,dual,w/band is the most expensive.
The thirty Zx750a2 1984 Europe Uk Fr Gr It Nr Sd Seat component parts are all listed in this schematic.
A sample from the products for the Seat include: Case,manual, Grip-frame,seat,lh, Hook,seat Lock, Screw,tapping,5x8.