Originally Posted by
Whizzer283
On my 2013 CAAD 10 5 with the 105 group, I get derailleur chain rub when I'm on the largest chain ring and first (largest) cog. I believe that this is normal and expected.
I have the same bike and mine does the same thing, I haven't played with the front derailleur yet but looks like its the norm to me as we'll.