Originally Posted by HTupolev

As long as it's representative of the real-world behavior, yes. Which aero usually is.

The trick with wind tunnel tests is that things are often tested in isolation, and riders vary. Sometimes one bike appears to be much more aero than another, but once the rider's legs are making the air turbulent in the back half of the machine, much of the advantage falls away.


The RChung method is surprisingly decent, because it tries to use the real-world variability to inform the result, rather than filter it out as noise. It requires some discipline from the rider and isn't as good as a wind tunnel, but it's a lot cheaper!