In this schematic the "Bolt,flange 6x16" is used most often.
The Gearshift Drum is made up of components including this Drum,gearshift which is the most expensive.
Parts such as the Gearshift Drum: Circlip,ex,14, Pin.shifter, Shaft,sift Fork M, Stpr Comp Drum are included in the Cr250r Elsinore 1993 (p) Canada Gearshift Drum parts fiche.