The BSA B50 was a single-cylinder 499 cc (30.5 cu in) ohv motorcycle, produced by BSA at their factory in Small Heath, Birmingham. The last of the big capacity unit-construction singles from …

Bsa B50 is a four stroke 500 cc single cylinder motorcycle. Made between 1971-1973. 1958 saw the beginning of a complete new engine/transmission design with the introduction of unit …

Dec 10, 2013 · When BSA announced that its 1971 range would include a new 500cc unit-construction single called the “Gold Star,” it provoked outrage among traditional British …

Sep 25, 2023 · The B50’s good looks and the appeal of taking it off-road probably sold thousands for BSA, but once the owner experienced oil leakage and a gearbox with a mind of its own, …

This BSA B50 buyers guide features: BSA B50 specifications and history, riding BSA B50, ownership tips; BSA B50 specialists and links; BSA B50 models: B50SS Gold Star, B50T …

Apr 3, 2024 · Starting in 1971, the BSA factory built the 499cc, 84mm x 90mm bore-and-stroke, unit-construction, dry-sump B50 in answer to the growing demand for a good four-stroke off …

Apr 8, 2025 · www.b50.org. A forum for those loving the B.S.A. B50 And all other B.S.A. & Triumph unit Singles. Skip to content

The BSA B50 MX was the final competition motorcycle ever built by BSA, a proud British motorcycle manufacturer who had built a staggering number of race winning motorcycles over …

Jul 14, 2021 · BSA B50 500 SINGLE All unit-construction BSA singles were spun off the original 250cc Star in 1959. Bored all the way out to 84mm and stroked to 90mm, the resulting 499cc’s …

Dec 4, 2017 · Frank’s factory BSA B50, back in the day. There never, ever was a B50SS which produced 34bhp straight off the production line. I can give you some actual figures of what the …