Old 09-18-11 | 02:26 PM
  #4  
kevin_stevens
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Joined: Jun 2011
Posts: 363
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What is the minimum difference spec on the front derailleur? For example , on an Ultegra or 105 it's 13T. That's the tooth difference you need between middle and large wheels so that the cage bottom can clear the middle when moving over to the large.

If you don't meet the spec, you just have to move the derailleur up anyway and put up with a misadjusted top cage.

KeS
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