Old 11-21-09 | 04:12 AM
  #21  
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guadzilla
Pointy Helmet Tribe
 
Joined: Feb 2009
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From: Offthebackistan

Bikes: R5, Allez Sprint, Shiv

Originally Posted by Flatballer
I don't think the front derailleurs can handle that. I'm pretty sure the biggest gap that front derailleurs can handle 16 teeth, which is 34-50.
Hmm - I am assuming that the limiting factor will be the ability to shift from the small to the big chainring, right? Didnt think of that - was thinking of chain slack only.

EDIT:
Originally Posted by Edsplace
I'm pretty sure it also has to do with bolt center diameter on the std vs compact. A 34 tooth chain ring cannot be made with a large enough BCD to fit a standard crank set.
Gotcha (and note to self - read entire thread first!)

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