The Nut-hex-small,8mm is the lowest priced item on this Swingarm schematic.
With three applications this Bearing-needle,bm2824 is the most specified part.
Parts such as the Swingarm: Seal-oil, Nut,pop,6mm, Sleeve,rh,20.1x28x52., Arm-comp-swing,black are included in the Er650fgf Er6n Abs 2016 Europe,middle East,africa Swingarm parts fiche.