Originally Posted by
spectastic
what bugs me is that some of these graphs aren't consistent at opposite yaw angles. the graph should be symmetric with respect to the y-axis, should it not? the only thing that's not symmetrical on a bike is the drivetrain and the disc rotors.
no, it should not. the drivetrain has a material impact on aerodynamics.
that said, look at the units on the y-axis. these are not enormous differences.
more telling would be rider + bike; you'll see less effect (asymmetry) when presented that way.