The component with the lowest price in the GEAR CHANGE DRUM/SHIFT FORKS schematic is the Bolt.
Parts such as the Gear Change Drum/shift Forks: Rod-shift,l=64.5, Fork-shift,low, Roller,4x8, Fork-shift,2nd&3rd are included in the Kdx250-d1 1991 Usa Canada Gear Change Drum/shift Forks parts fiche.