Parts such as the Balancer: Pl,bal.chain Guar, Bolt,flange,8x16, Washer,8mm, Bolt,flange,8x16 are included in the Cb450sc Nighthawk 1986 (g) Usa California Balancer parts fiche.
On this parts fiche the Balancer Comp. is the most specified component.
The Bolt,flange,8x16 is the cheapest item from this partsfiche.