c.1950 Vincent 998cc Black Shadow Series C Frame no. RC6268B Engine no. F10A/1B/4368

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Lot 314
c.1950 Vincent 998cc Black Shadow Series C
Frame no. RC6268B Engine no. F10A/1B/4368

AU$ 60,000 - 70,000
US$ 44,000 - 52,000
Withdrawn
c.1950 Vincent 998cc Black Shadow Series C
Frame no. RC6268B
Engine no. F10A/1B/4368
The outbreak of WW2 in 1939 brought production of all Series A models to a halt, and when Vincent resumed production at the war's end it was with the all-new Series B. Its rear suspension aside, the Series A Vincent-HRD had been conventional enough: tubular steel frame, girder forks, separate gearbox, etc but with the Series B Messrs Vincent and Irving effectively established the marque's reputation for the defiance of convention in the pursuit of engineering excellence. For a start there was no 'frame' as such, merely a fabricated box attached to the cylinder heads, that served as the oil tank and incorporated the headstock and the attachment point for the rear springs. The gearbox was integral with the engine, and the swinging arm pivoted directly in the engine/gearbox casings, features commonplace today but unusual 60 years ago. Only in his retention of the pre-war Brampton girder fork did Phillip Vincent appear to be lagging behind other manufacturers, almost all of which had switched to telescopics, but this apparent shortcoming would soon be addressed by the introduction of the famous 'Girdraulic' fork.
Introduced in 1946, the Vincent-HRD Series-B Rapide was immediately the fastest production motorcycle on sale anywhere, with a top speed of 110mph. The basic design clearly had even greater potential though, which would be realised later in the form of the Black Shadow and Black Lightning models. In 1948 the Vincent range began to be up-dated to 'Series C' specification. The most significant changes made concerned the suspension, there being a revised arrangement at the rear incorporating curved lugs for the seat stays and an hydraulic damper between the spring boxes, while at the front the new models boasted Vincent's own 'Girdraulic' fork: a blade-type girder fitted with twin hydraulic dampers. These advances began to find their way onto production models during 1948 but it would be 1950 before all Vincents left the factory in Series C specification.

Little early history of this particular Series C Black Shadow is known but an old registration document on file indicates it was previously registered as LLH 434 to one Andrew Berwick of Lower Bullingham, Hereford.
The bike remained in the United Kingdom before being imported into the Netherlands by Dutch Vincent specialist Harry Vermeulen, then passed to a German collector who retained it for the next 14 years. Since purchasing the Vincent from Yesterdays Antique Motorcycles in Holland in 2004, the current Australian owner has had the bike carefully checked over by local specialist Derek Gobby from Vee2, who reported good compression but replaced the clutch. The bike was converted to 12-volt electrics some time ago and comes with some old manuals and copies of Vincent literature.
Contacts
c.1950 Vincent 998cc Black Shadow Series C Frame no. RC6268B Engine no. F10A/1B/4368
c.1950 Vincent 998cc Black Shadow Series C Frame no. RC6268B Engine no. F10A/1B/4368
c.1950 Vincent 998cc Black Shadow Series C Frame no. RC6268B Engine no. F10A/1B/4368
c.1950 Vincent 998cc Black Shadow Series C Frame no. RC6268B Engine no. F10A/1B/4368
c.1950 Vincent 998cc Black Shadow Series C Frame no. RC6268B Engine no. F10A/1B/4368
c.1950 Vincent 998cc Black Shadow Series C Frame no. RC6268B Engine no. F10A/1B/4368
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