The Cam Chain / Tensioner is made up of components including this Chain,cam Dk219t which is the most expensive.
Some items from this specific schematic: Pin,chain Roller, Bolt,flange,6x40, Rubber,roleer Pin, Nut,thin 6mm.
The most reasonably priced component used on the Cb750k8 Four 1978 Usa Cam Chain / Tensioner is the Nut,thin 6mm.