Parts such as the Cylinder/piston(s): Pin,8x14, Cylinder-engine, Nut, Circlip-piston Pin are included in the Er650b8f Er6n Abs 2008 Europe,middle East,africa,uk Cylinder/piston(s) parts fiche.
On this parts fiche the Circlip-piston Pin is the most specified component.
Of all the components used in this assembly the Cylinder-engine is the most expensive.