The most reasonably priced component used on the Kdx125-a1 1990 Europe Uk Fr Ar Nr Sa Sd St Front Master Cylinder is the Bolt-flanged-small.
Parts such as the Front Master Cylinder: Nut,flanged,6mm, Bolt, Washer, Switch,brake are included in the Kdx125-a1 1990 Europe Uk Fr Ar Nr Sa Sd St Front Master Cylinder parts fiche.
With four applications this Washer,10.5x15x1.5 is the most specified part.