The lowest price component in this Cushion Lever (model M/n/p/r/s/t) parts-list fiche is the Nut.
Some items from this specific schematic: Bolt(12x57), Nut 12mm, Spacer,rr Cushion Lever, Rod,rr Cushion Lever.
The Bearing(17x24x25) is the most widely applied product in the GS500E 1990 (L) (E01 E02 E04 E15 E16 E17 E21 E22 E24 E25 E34 E39 CUSHION LEVER (MODEL M/N/P/R/S/T) ( two times ).