Originally Posted by
sloar
My speedo with average speed mode, same course, same wheels and tires, same rider. And my non expert opinion.
Okay, that makes this interesting!
Let's just stipulate that weather conditions, rider's breakfast, etc, had nothing to do with the difference.
So then the question is, what makes the one bike more efficient than the other?
It could be energy transfer (because one frame flexes more than the other, one frame transfers more power to the wheels than the other... but which?), or it could be ergonomics (rider's position on one bike allows for more efficient pedaling) or aerodynamics...
Dunno, myself! But it is interesting....