Check out any of the seventeen Gear Change Drum/shift Fork(s) components enlisted.
A sample from the products for the Gear Change Drum/shift Fork(s) include: Cam-change Drum, "0" Ring, O Ring,18mm, Bearing-ball,16005.
The Gear Change Drum/shift Fork(s) assembly is constructed from several parts from which the Drum-assy-change is the most expensive.