Parts such as the Front Hub: Seal-oil,pjn40556, Drum-assy,front Brake, Washer-plain-small,12, Case-assy-meter Gear are included in the Kmx125-b5 1990 United Kingdom Fr Sd Front Hub parts fiche.
The component with the lowest price in the FRONT HUB schematic is the Washer-plain-small,12.
The most expensive part in this assembly is the Drum-assy,front Brake.