Thread: Desperate for urgent help!
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Old 06-16-10 | 07:31 PM
  #6  
Al1943
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Joined: Feb 2005
Posts: 9,438
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From: Oklahoma

Bikes: Trek 5500, Colnago C-50

Originally Posted by cny-bikeman
I have no idea what a rail is in a bicycle drive train.
Each side of a derailleur cage is a "rail".
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