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Old 07-16-09, 10:54 AM
  #6  
Al1943
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Join Date: Feb 2005
Location: Oklahoma
Posts: 9,438

Bikes: Trek 5500, Colnago C-50

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How old is the derailleur?
Is it under warranty?
Has it been damaged?
Try lubrication.
Check the cable routing under the bottom bracket.
You may need a new one.

Al
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