eighteen components are listed in the schematic for this Kz440a2 Ltd 1981 Usa Canada Gear Change Drum & Forks ('81-'8 .
The Kz440a2 Ltd 1981 Usa Canada Gear Change Drum & Forks ('81-'8 consists of eighteen pieces with the Drum Assy,change being the most expensive.
In this schematic the "Pin-gear Change Drum" is used most often.