This is one incredible motorcycle.   The Black Falcon is the third motorcycle in the Concept 10 series from LA-based Falcon Motorcycles. Built off the 1,000 cc V-twin engine of a 1952 Vincent Black Shadow, the Black Falcon took a year to build. Almost everything, except the engine, is handmade. The Black Falcon is the third motorcycle in the Concept 10 series from LA-based Falcon Motorcycles. Built off the 1,000 cc V-twin engine of a 1952 Vincent Black Shadow, the Black Falcon took a year to build. Almost everything, except the engine, is handmade.  GT