On this parts fiche the Bearing(17x24x25) is the most specified component.
The most reasonably priced component used on the Gs500e 1990 (l) Usa (e03) Cushion Lever (model K/l) is the Nut.
The Gs500e 1990 (l) Usa (e03) Cushion Lever (model K/l) consists of fifteen pieces with the Absorber Assembly,rear Shock being the most expensive.