The Gearshift Drum is made up of components including this Drum Comp,gear Sh which is the most expensive.
The Roller,3x8 is the lowest priced item on this Gearshift Drum schematic.
Parts such as the Gearshift Drum: Spg,shift Return, Washer,thrust 14, Center Comp,shift, Socket Bolt, are included in the Cb1000r 2009 (9) European Direct Sales Gearshift Drum parts fiche.