Howard Raymond Davies had formed the HRD company in 1924.
Early in 1928, Ernie Humphries of OK-Supreme bought the failing HRD company to acquire the factory at Fryer
Philip Vincent, an engineering graduate of Cambridge University, had built a motorcycle of his own in
He decided to start production of his own machines under an established name and with backing from his
wealthy father, he purchased the HRD trademark along with the remaining spares, tools, etc. from Ernie
The Vincent HRD Company Ltd. was formed and production moved to Stevenage.
The new trademark had 'HRD' written in large letters and 'The Vincent' in much smaller letters above.
The first Vincent-HRD motorcycle was available to the public in
1929. This featured a single cylinder JAP engine fitted into a cantilever frame designed by Phil Vincent
In 1931 Phil Irving joined Vincent as chief engineer.
Some early Vincent-HRDs had Rudge engines.
In the 1934 Isle of Man Senior TT Race, all three Rudge engined Vincent-HRDs had failed to finish due to
It was then that Phil Vincent and Phil Irving decided to design and build their own engines.
Later in 1934, Phil Irving's first engine design for Vincent-HRD was a
500cc single cylinder overhead valve engine.
This engine was fitted into a motorcycle known as the Meteor with a sports version known as
the Series A Comet being offered.
The Series A Comet was capable of 90mph, however, in the quest for even more
performance, the first Vincent HRD twin, the Rapide, was introduced in October 1936.
There is a legend that Phil Irving accidentally put a tracing of the single cylinder Comet
engine at an angle over another drawing of the engine and saw what looked like a possible design for a
The 998cc air-cooled 47.5° V-twin produced 45hp and could achieve a top speed of
It featured a cantilever rear frame with springing under the seat. This feature
was used on all Vincent frames produced from 1936 until 1955.
The Rapide featured Brampton girder forks up front.
The Series-A had external oil lines and a separate gearbox.
Phil Irving left Vincent to work for Velocette in 1937, however he returned to
Vincent in 1943 to start working on the Series B.
During World War II, Vincent produced munitions, however some engines were produced
for use in boats and industrial pumps.
The end of the war saw Vincent ready to return to motorcycle
By this time, Vincent were looking to America for sales and in 1944, the first USA
dealership was opened by Eugene Aucott in Philadelphia.
The Series B Rapide had been designed during the war and was released to the press just before the end of
It was released to the public in 1946.
There were several differences from the Series A.
The engine was still a V-twin, however the angle between the cylinders was now 50°.
The engine was used as a stressed member of the frame which was considered sensational at the time.
The oil pipes were now internal and the gearbox was of a unit construction.
Both front and rear brakes were of a dual single-leading shoe design.
The 55.5 inch wheelbase was three inches shorter than the Series A and its dimensions were more like a
500cc machine of the time.
In the USA, Vincent sold motorcycles through dealers specialising in Indian Motorcycles.
In 1948, as an experiment, an Indian Chief motorcycle was sent to the Vincent
factory in Stevenage to be fitted with a Rapide engine.
The resulting 'Vindian' did not go into production.
The 1948 Series C Rapide differed from the Series B in having "Girdraulic" front forks. These were girder forks
with hydraulic damping.
The Black Shadow was introduced in 1948.
Producing 54bhp at 5700rpm, it was capable of 125mph and was recognised by its black
engine and gearbox unit.
The Black Lightning was a racing version of the Black Shadow with many parts rmade in aluminium and anything not
essential removed altogether to reduce weight.
It had a single racing seat and rear-set footrests.
In 1949, HRD was dropped from the Vincent HRD name to avoid confusion with 'HD' of Harley Davidson, and the
motorcycle became known as The Vincent.
In the 1950s, with sales falling, Vincent built new touring models.
These were the fully enclosed Vincent Victor (an upgraded Comet), the Black Knight (an upgraded Rapide) and
the Vincent Black Prince (an upgraded Black Shadow).
They were poorly received by the public.
They were known as the Series D to the motorcycling world although the term was not actually used by
Vincent motorcycles were expensive because they were hand built and by 1954, Vincent was struggling
In order to survive, the company manufactured NSU mopeds and small motorcycles under
licence such as the 123cc two stroke NSU-Vincent Fox. There was also a 98cc OHV four stroke. Vincent
also sold 'NSU Quickly' mopeds.
Because of falling motorcycle sales, a one-off prototype 3-wheeler was produced, unofficially named
Powered by a 998cc Rapide engine, it had an aluminium body and used Vincent motorcycle parts and
Morris Minor wheels!
With the Rapide engine, it reached 90 mph and, when later fitted with a Black Lightning engine
in 1955, achieved 117 mph.
Vincent did not receive any orders for the 'Polyphemus'.
New Zealander, Russell Wright achieved the World Land Speed Record at Swannanoa, New Zealand in
1955 riding a Vincent Black Lightning at 185.15mph.
Also in 1955, at a Vincent Owners' Club dinner, Phil Vincent announced that the
company could no longer afford to continue and that production of Vincent motorcycles would have to