Parts such as the Seat: Nut,flange,6mm, Seat Assy.,rr., Rubber C,seat Set, Bolt,flange 6x10 are included in the Cmx450c Rebel 1988 (j) Austria / Kph Seat parts fiche.
The component with the lowest price in the SEAT schematic is the Nut,flange,6mm.
The twelve Cmx450c Rebel 1988 (j) Austria / Kph Seat component parts are all listed in this schematic.