Well if you go really really fast aero is the most important. The aerodynamics of an upright rider is worse than a semi truck. Also the breathing aspect is only really relevant for longer efforts. If you want to race 150 other guys through small European roads for 21 days in a row, up right is better.
Recumbent vs. upright is actually an over 100 year old battle, over misunderstanding each others needs and wants from a bike. Many recumbent people are still sour over UCI banning non-double diamond frames.
Recumbent vs. upright is actually an over 100 year old battle, over misunderstanding each others needs and wants from a bike. Many recumbent people are still sour over UCI banning non-double diamond frames.