When I brought my 2015 Supersix Evo the store told me size down on Cannondale’s. I’m 5.7ish and mines a 52cm and again it does feel a bit to long for me. My two bikes a setup quite similarly although the bike which is meant longer and lower actual feels smaller in stack and reach. Might be worth seeing if you could someone local who has a smaller size that you can compare the two against .
