English or Italian BB

[Kango]

i need to replace my BB - 2007 Cervelo RS.

 

How can I see if I need to order an Italian or English tread BB.

 

Did a search, but nothing found. I now know how to referb a BB

[arendoog]

English thread is clockwise ,Italian is anticlockwise .Double check in any case

[Kango]

English thread is clockwise ,Italian is anticlockwise .Double check in any case

 

Lh side is lh thresd and Rh side is Rh thread. that is same on all BBs

[Helpmytrap]

English thread is clockwise ,Italian is anticlockwise .Double check in any case

Lh side is lh thresd and Rh side is Rh thread. that is same on all BBs

I just checked my bike which is Italian thread, both left and right sides tighten clockwise.

 

Edited in light of the info posted below.

Edited December 1, 2013 by Helpmytrap

[Flowta]

English: Left Cup - right hand thread, Right Cup - Left hand thread

Italian: Both Right hand Thread

 

Courtesy of Sheldon Brown

[openmind]

Your Cervelo has an "English" threaded BB, also known as "British" or ISO.

 

See: http://sheldonbrown....o-z.html#bottom

 

English: left cup - right thread; right cup - left thread.

Italian: left cup - right thread; right cup - right thread.

 

The English BB has a left thread on the right cup to prevent the right cup from unscrewing itself during use (same reason a left pedal has a left thread).

 

B.t.w., all the posts above are wrong in some way!

Edited December 1, 2013 by openmind

[Kango]

Thanks for the info

 

Appreciated.