The Gearshift Drum is made up of components including this Drum Comp.gear Sh which is the most expensive.
Parts such as the Gearshift Drum: Spindle Comp,shif, Drum Comp.gear Sh, Washer,thrust 14, Shaft,gear Shift are included in the Cb600f Hornet 2003 (3) France Gearshift Drum parts fiche.
The twenty Cb600f Hornet 2003 (3) France Gearshift Drum component parts are all listed in this schematic.