Vincent Black Prince The frame was also modified, re-siting the oil tank previously contained within the "Upper Frame Member" under the fuel tank, to underside of the new-design seat. A replacement single tubular strut bolted to the steering head and a single spring-damper unit replaced the twin rear shocks. The Black Prince was launched at the 1954 Earls Court motorcycle show, together with the 998 cc Vincent Black Knight and the 500 cc 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 Prince
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