The Set Ring 12mm is the lowest priced item on this Cam Chain - Tensioner schematic.
Some items from this specific schematic: Nut,hex 6mm, Set Ring 12mm, Washer, Lock, Washer,spring,6mm.
This part-list fiche shows all the components that make up the Cb175k5 Super Sport 1971 Usa Cam Chain - Tensioner .
