I was wondering if anyone rides a tri frame that is 4 to 5 cm smaller than their road bike? I ask because most feed back says a frame size smaller depending on the manufacturer. I ride a very aggressive aero position and was wondering if it could be detrimental to power. It is not uncomfortable and I'm able to stay on the aero bars the whole bike ride. Also, the first time I used it in a sprint was the first time my hamstrings did not cramp and my run time dropped by just under 3 minutes.