Old 05-03-12, 06:39 PM
  #3  
aknoch
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Yes, I was anticipating needing a Shimano derailleur due to the Ultegra shifter. So I have two questions in response:

1. I see that the 5700A will take up to a 30t, but this does not answer my cage length issue. Are these unrelated?

2. I have read about using mtb components, but I don't get it. It makes sense that a 9 speed deore would have the reach due to mtb gearing, but would it index 10 shifts? But then again derailleurs are dumb mechanics that follow the indexing of the shifter. Am I thinking about this right? What are the pros/cons of using an mtb derailleur in this configuration?
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