Some items from this specific schematic: Sprocket, Cam, Washer, Sealing, Springa,tensioner, O Ring, 5.5x1.5.
This Cam Chain - Tensioner diagram displays the required parts for the Z50j1 Monkey Germany Cam Chain - Tensioner.
The most reasonably priced component used on the Z50j1 Monkey Germany Cam Chain - Tensioner is the Nut,hex.,8mm.