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Front derailleur

  • By Caley Fretz
  • Published Apr. 17, 2012
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Di2 front derailleurs auto-trim as you shift across the rear cogs, so the chain never rubs. Photo: Caley Fretz

Di2 front derailleurs auto-trim as you shift across the rear cogs, so the chain never rubs. Photo: Caley Fretz

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