Why does reducing tyre pressure improve handling?
This is just a theory:
When the pressure in a tyre is reduced the contact patch is enlarged. The total dynamics of the rolling tyre start where the ?rubber hits the road?. As such one half of the increase in the contact patch length is added to the mechanical trail there by increasing the straight line stability in the same manner as increasing the caster angle.
(Mechanical Trail is the moment arm between the steering pivot point (fore) and the center of the contact patch (aft))
This is just a theory:
When the pressure in a tyre is reduced the contact patch is enlarged. The total dynamics of the rolling tyre start where the ?rubber hits the road?. As such one half of the increase in the contact patch length is added to the mechanical trail there by increasing the straight line stability in the same manner as increasing the caster angle.
(Mechanical Trail is the moment arm between the steering pivot point (fore) and the center of the contact patch (aft))
I have enough to think about already. I think there is a fine line to the right amount. I have experminted over the years and could never tell much difference with the + - 5 psi here or there vs weight. The road and ambient air temp can fluctuate the air pressure more than that. High pressure stiffer ride to low you get sidewall roll. I just stay at the recommendation on the coach anymore and seems to be fine over the years for me.
