Vincent Black Knight from the saddle and a single damper replaced the twin rear shocks. The frame was also modified with the strong steel 'backbone' was replaced with a single tubular strut bolted to the steering head (which proved much weaker). The Black Knight was launched at the 1954 Earls Court motorcycle show, together with the 998cc Vincent Black Prince (an enclosed version of the Black Shadow ) and the 500cc Vincent Victor (which never went into production as only the prototype was ever built). There was a lot of interest but much of it was critical, and the Black Knight/Black Prince models
Vincent Black Shadow Touring specification, and a sidecar could be fitted on either side of the bike. The Series B and C machines do not carry any indication of the model name in their transfers, lining or badges. Beginning in 1955 on the Series D Black Shadow the figure of Mercury is joined by transfer text reading "Black Shadow". The rear suspension of the Black Shadow is a cantilever system, with a rear frame member (RFM) of two parallel upright triangular members pivoting from heavy plates on the back of the transmission case at the bottom and attached at the top to two