The Shift Drum/shift Fork is made up of components including this Drum Assy,shift which is the most expensive.
A sample from the products for the Shift Drum/shift Fork include: Fork C,gearshift, Circlip,ex,14, B/brg Rad N/com, Nut,flange,6mm.
In this schematic the "Roller,4x14.8" is used most often.