Thread: motobecane le champion
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Old 12-17-09 | 01:22 PM
  #20  
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SJX426
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The only difference between Swiss and French is the direction of the threads on the drive side. They are both 35mm x1mm (1.378" x 25.4 TPI) with the Swiss having left hand threads on the drive side.

Iso is 1.370/1.375 x 24 TPI right hand both sides.
http://www.sheldonbrown.com/cribshee...mbrackets.html

I did a quick measurement and it is one or the other. It is not Italian!
Last edited by SJX426; 12-17-09 at 01:26 PM.
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