Some items from this specific schematic: Spring Set,valve, Screw,tappet Adjusting, Seal,oil(5.5x11x8.2), Nut,adjusting Screw.
The most reasonably priced component used on the Vl800c Boulevard C50 2012 (l2) Usa Californ Canada (e03 E33 E28) Camshaft - Valve is the Pin.
With sixteen applications this Cotter,valve is the most specified part.