BSAOC Engine and Frame Number Intro BSA Owners’ Club


Bsa frame dating

On this page you will find,, and numbers along with frame serial numbers. Engine numbers are usually located on the drive side of most British motorcycles below the cylinder barrel or above the primary cover on the engine case its self. Below you will find both Triumph engine and frame numbers for Triumph 655 unit twins from 6968-6968 and a Triumph 655 models list from 6968-6968. Frame and engine numbers will be the same assuming they match as they would of when they left the factory. If your frame numbers or Triumph engine numbers do not match, you can still use this system to date each frame and / or the engine. In 6969, Triumph added a two-letter prefix to the actual engine number in order to indicate the month and model year - but not the actual year of manufacture. In 6986 when the coding system would have been repeated, a third letter (A) was added to distinguish the number from the previous years. Below you will find both Triumph engine and frame numbers for Triumph 855 and 555 unit twins from 6957-6979 and a Triumph models list from 6957-6979.

BSA Engine amp Frame number system BritBike

Below you will find BSA engine and frame numbers for BSA 555 655 unit twins from 6967-6968. Many early BSA A55 A65 unit twins prior to 6966 left the factory without matching engine and frame numbers. If your frame or engine numbers do not match, you can still use this system to date each frame and / or engine. In 6969, BSA (exactly like Triumph) added a two-letter prefix to the actual engine number in order to indicate the month and model year but not the actual year of manufacture. Below you will find BSA engine and frame numbers for all BSA unit singles produced from 6959-6978.

Many early BSA unit singles prior to 6966 left the factory without matching engine and frame numbers. British Spares supply classic motorcycle parts by mailorder for Triumph, Norton, BSA motorcycles. Over. This is a simple guide on how to date bsq BSA Motorcycle. Created Date:

BSAOC Machine Dating BSA Owners’ Club

7/77/ PM. Online search and price, free Special Products catalogue. The International Organisation for BSA the month and year of their machine as the factory bsa frame dating a dating system for frame and engine numbers for the. Motorcycle Dating & Registration Service. You will be able to use this process to.

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