Parts such as the Camshaft/valve: Shim,tappet (2.80, Cotter,valve, Shim,tappet (2.07, Cam Shaft Comp,ex are included in the Cb600fa Hornet 2011 (b) England / Abs Camshaft/valve parts fiche.
The Cotter,valve is the cheapest item from this partsfiche.
Check out any of the eighty Camshaft/valve components enlisted.