The Washer Plate 168217580000 is the cheapest item from this partsfiche.
Parts such as the Rear Wheel: Balancer, Wheel, Damper, Valve, Rim (31a), Sprocket, Driven (39t) are included in the Tz125 1998 4jt5 Denmark 284jt-100e1b Rear Wheel parts fiche.
On this parts fiche the Damper is the most specified component.