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  1. #1
    mtbr member
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    What is ‘BSA’ BB means?

    I know it is English-threaded.


    But what is really ‘B S A’ meaning?
    British Standard something?


    Tell me if you know...

  2. #2
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    It stands for "Birmingham Small Arms company", which was the company that started the standard, after that BSA just stuck on the name.

  3. #3
    mtbr member
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    Check with Sheldon for all things historical

    https://www.sheldonbrown.com/gloss_bo-z.html#bsa

  4. #4
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    Best Standard Apparently
    Jason
    Disclaimer: www.paramountsports.net

  5. #5
    Nothing seems to kill me
    Reputation: CUP-TON's Avatar
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    Dec 2016
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    683
    Boy Scouts of America. They sell bottom brackets like Girl Scouts sell cookies. But only threaded bbs.
    Oh, wait never mind. They are now just "Scout" bottom brackets and they sell pressfit..too.
    How can this mean anything to me, if I really don't feel anything at all. I'll keep digging, till I feel something.

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