Parts such as the Step: Bolt,flange,6x 14, Plate,r Step Set, Pin,step Bar Join, Bolt,socket,10x45 are included in the Xr650r 2006 (6) European Direct Sales Step parts fiche.
On this parts fiche the Pin,step Bar Join is the most specified component.
The most reasonably priced component used on the Xr650r 2006 (6) European Direct Sales Step is the Washer,8mm.