My two-wheel equilibrium Rulez have a Higher priority..
As with the well-known symbol for er Windoze Stability\ufffd:
-*-
{{\\______/}}
___\\____/
____\\__/
_____\\/____
//////////////
_*_ = a fly about to land
While that describes a 'point' problem of one dimension (much like the Manufacturer's mind$et) moving on to a plane/road, with only TWO wheels has a ~ flavor, so I think:
F= Gm1m2 / R2
[Along with the ever-popular F=ma + Peter Principles, natch]
..are the ones to remain in Awe of.
:-\ufffd