Vincent Black Shadow and C bikes having 1⅛" Amal 289 carburettors and Series D bikes having 1⅛" Amal Type 389/10 units. While other contemporary motorcycles tended to be polished and chromed, founder Philip Conrad Vincent (PCV) decreed that the Black Shadow engine itself be black. The engine's signature colour was achieved by applying a "pyluminising" coating of chromate anti-corrosion primer over which a layer of Pinchin & Johnson black enamel was added. The part was then baked in an oven for 2 hours at . Although some have claimed that the black finish increased the rate of heat rejection from the engine, its
Black Shadow (wrestler) Demon and Black Shadow became known as "Los Hermanos Shadow" (Spanish for "the shadow brothers") despite not being related. Los Hermanos Shadow quickly became very popular and were at one point the main "Technico" (good guy) team. In the mid-1950s Los Hermanos Shadow began a decade long rivalry with the top Rudo (villain) team of El Santo and Gory Guerrero, known as "La Pareja Atómica". After selling out arenas all around Mexico for their tag team matches El Santo and Black Shadow started to work singles matches against each other. The rivalry between Black Shadow and El Santo culminated in