The most reasonably priced component used on the Dr800s 1997 (v) France Germany Italy (e04 E22 E34) Handlebar is the Screw 6x12.
Some items from this specific schematic: Mirror Assy, Rear View Rh, Screw, Clamp, Mirror Assy, L.
On this parts fiche the Balancer Set,handlebar is the most specified component.