A sample from the products for the Crank Balancer include: Bolt 6x20, Bearing(19x26x25.2), Washer, Balancer,crank.
The eleven Gsx1300rz Hayabusa 2005 (k5) Usa (e03) Crank Balancer component parts are all listed in this schematic.
The Crank Balancer assembly is constructed from several parts from which the Balancer,crank is the most expensive.