Subject: RE: New Compact Crankset: suggestions? Daremo - 2009-01-28 3:30 PM And keep an eye on your chain stretch and how taught the rear derailleur gets. If you already had a 25 or 26, then you should be okay. But if you are going from a 21 or 23 to a 28, your chain may be a hair short in some of the extreme cases. I will go tomorrow morning and the LBS told me he had to change the chain 100% because I go from 23 cog. With 20% discount I pay cassette 7900 plus dura ace chain 420CHF which is more or less 350$. I think in US you get much better prices but it is definetely cheaper than a full new compact crankset!
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