The Collet is the cheapest item from this partsfiche.
Parts such as the Valve(s): Tappet, Retainer-valve Spring, Shim,t=3.40, Shim,t=3.00 are included in the Er650a6s Er6n 2006 Europe,middle East,africa,uk Valve(s) parts fiche.
Check out any of the twenty-nine Valve(s) components enlisted.