Originally Posted by
jaxgtr
If I compare the Domane which has the 46/33 and 10-33, I find myself in the 13-15, and 17 for the most part. Mostly 15\17 right now as I am getting used to the new setup when I look at the same speed and cadence. The Emonda is still running the Shimano 11 speed which is what I am looking at possibly changing out. Everything is based on the wind and if I was prudent in my route selection. Sometime the winds decide to screw me over though.
46T and 13-15 at 80 rpm is 19-22 mph. Bringing the chainring down to 40T reduces those by about 3 mph. Pretty difficult for anyone to answer. You really have no hills, a 10-28 SRAM 12 speed and 40T might be better since you get 10-17 straight block and then bigger jumps to the 28 whereas on the 10-33, you lose the 16T.