The Vincent Black Shadow is a British motorcycle designed and built at the Vincent works in Great North Road, Stevenage, Hertfordshire UK. Motorcycles produced by Vincent H·R·D at their factory in Stevenage, Hertfordshire, England were renowned for their design innovation, engineering excellence and high performance. Already advertising their existing 110 mph (177 km/h) Rapide machine as "The world's fastest production motorcycle", in February 1948 the distinctive Vincent Black Shadow was announced with a top speed of 125 mph (201 km/h). Built in three different Series over the course of its life, the line continued until 1955, after which the company stopped all motorcycle production.