On this parts fiche the Washer,9.2x19x23 is the most specified component.
The Crankcase Bolt Pattern is made up of components including this Bolt,flanged,8x110 which is the most expensive.
Parts such as the Crankcase Bolt Pattern: Bolt,flanged,8x120, Bolt,flanged,9x113, Bolt,8x60, Bolt,flanged,6x32 are included in the En650ehf Vulcan S Cafe 2017 Europe,middle East, Africa Crankcase Bolt Pattern parts fiche.