Some items from this specific schematic: Bolt,seat Fr, Cushion, Washer,pillion, Washer(6.5x20x1.6).
The most reasonably priced component used on the Gsx1300r Hayabusa 1999 (x) Usa (e03) Seat (model K1) is the Washer(6.5x20x1.6).
This part-list fiche shows all the components that make up the Gsx1300r Hayabusa 1999 (x) Usa (e03) Seat (model K1) .