1951 B.S.A. Golden Flash

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The B.S.A. Golden Flash motorcycle was made in Great Britain. It featured an air-cooled, vertical twin four stroke engine. The ignition was a Lucas magneto. The engine was rated at 35 b.h.p. at 5,500 r.p.m. The displacement was 646cc based upon a bore and stroke of 70 X 84mm. Fuel was supplied via a single Amal carburetor. Getting the power to the ground was by a four speed transmission. The suspension featured front telescopic forks with a rear plunger. Drum brakes were on both the front and rear. The motorcycle weighed in at 425 pounds. Top speed for the bike was 96 m.p.h.

According to the museum's fact sheet "BSA's 650 twin was a very popular touring machine, often seen with a sidecar attached. The polychromatic beige paint was a radical departure from the traditional black. With mild cam timing and relatively low 7 to 1 compression ratio, the Golden Flash gave outstanding flexibility, with a performance of 30 to nearly 100 m.p.h. in high gear."


Last Updated: May 14, 2011


Updates to this page:
  • May 14, 2011 - added pictures & updated page layout
  • October 22, 2010 - updated page layout
  • August 31, 2007 - Created this page and added it to my web site.
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