On this parts fiche the Bolt,cam Chain Tnsn & Guide is the most specified component.
The most reasonably priced component used on the Vzr1800 Boulevard M109r 2009 (k9) California (e33) Cam Chain is the Gasket(6.2x13x1.2) (nas).
The most expensive part in this assembly is the Sprocket,cam Chain Idler Fr.