Thread: Upper pulley isn't guiding chain
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Old 04-24-13 | 12:18 PM
  #10  
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CACycling
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Joined: Feb 2008
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From: Oxnard, CA

Bikes: 2009 Fuji Roubaix RC; 2011 Fuji Cross 2.0; '92 Diamond Back Ascent EX

The chain looks right, the RD looks wrong. You've lost tension somewhere in the RD. Look at the exploded view in Shimano tech docs to see if it gives you an idea where the problem is.
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