Old 04-22-14 | 11:00 AM
  #2  
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Ex Pres
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Joined: Dec 2007
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From: Mountain Brook, AL
It'll work. The indexing is in the shifter, not the derailleur, and all 105/600 RDs have the same actuation ratio. Just don't put a 7s DuraAce shifter with it and you'll be fine
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