Parts such as the Swingarm: Bearing-ball,6004ul11, Adjuster-chain,inner, Cap,chain Adjuster,m., Circlip,42mm are included in the Er650a6s Er6n 2006 Europe,middle East,africa,uk Swingarm parts fiche.
In this schematic the "Bearing-needle,7e-hvs" is used most often.
Of all the components used in this assembly the Arm-comp-swing,m.bron is the most expensive.