Threading Question : BB Frame Cage & Campy Chorus BB

Discussion in 'Cycling Equipment' started by litespeedguy, Aug 20, 2013.

  1. litespeedguy

    litespeedguy New Member

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    Given that my frame was made in Tennessee I would assume English threading for the BB shell and that the shop where I got the bike would have ordered an English threaded Campy BB .

    my confusion is that some old notes that I have say to turn clockwise to loosen the drive side cup and counterclockwise for the other side - does anyone know if this is correct ? seems wrong if English threading on the entire shell ??
     
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  2. alfeng

    alfeng Well-Known Member

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    FYI. The driveside of an English threaded BB shell has a LEFT HAND THREAD ...

    So, to remove the driveside BB cup which has English threading you would indeed turn it clockwise ...

    And, counter-clockwise to remove the non-driveside BB cup which has English threading.
     
  3. CAMPYBOB

    CAMPYBOB Well-Known Member

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    http://sheldonbrown.com/cribsheet-bottombrackets.html

    You old notes and Alf are correct.

    Drive side is a left-hand thread.
    Off-drive side is a right-hand thread.
     
  4. litespeedguy

    litespeedguy New Member

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    thanks guys !!!
     
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