The most reasonably priced component used on the Gsx1100g 1991 (m) Usa (e03) Crank Balancer is the O Ring(d:1.9,id:14.5).
The Crank Balancer is made up of components including this Shaft Comp,balancer which is the most expensive.
This CRANK BALANCER assembly utilises two Bolt(s) - the highest specified component.