Originally Posted by
oldbobcat
If this were the only factor, or even the most important factor, then all those work bikes and kids delivering newspapers on their bikes in the '50s did not really exist.
Last I checked, putting extra weight on the front of the bike
does destabilize it a bit, without reducing either the gyroscopic effect or the bike's trail.
I would assume that putting your weight forward also contributes to the less stable handling on aero bars.