Parts such as the Gearshift Drum: Plate,drum Set, Pivot,shift Drum, Pin, Shift Return, Spg,shift Return are included in the Cbr900rr Fireblade 1996 (t) European Direct Sales Gearshift Drum parts fiche.
The Gearshift Drum assembly is constructed from several parts from which the Drum Comp,gear Sh is the most expensive.
In this schematic the "Plate,drum Set" is used most often.