The most reasonably priced component used on the Zx1000b2 1989 Europe Uk Fr Ar Gr It Nr Sd Tire is the Balancer-wheel,10g,si.
Some items from this specific schematic: Tire,fr,120/70vr17-v2, Valve,tire, Balancer-wheel,30g,si, Balancer-wheel,20g,si.
In this schematic the "Valve,tire" is used most often.