The Taillight(s) is made up of components including this Lamp-tail which is the most expensive.
Parts such as the Taillight(s): Damper,tail Lamp, Bulb,12v 5w, Screw,tapping,5x16, Bolt-flanged,6x16 are included in the En650agf Vulcan S 2016 Europe,middle East,africa Taillight(s) parts fiche.
In this schematic the "Bolt-flanged,5x20" is used most often.