I run a 34 x 28 on the Emonda, and have not run into anything it can't handle. As a one-handed rider, I get no benefit from standing on a climb. That said, I went with a 34 x 30 on the newer Domane, and would probably do so on the Emonda if the older Dura Ace di2 on the Emonda could go there. Other than bragging rights, I personally have no good reason not to have an easier bail out gear.