Tire inflation
After weighing I find my front tires are inflated too much. The sticker on sidewall says 90psi but the Michelin chart has them between 80 and 85. Is this typical that sidewall charts are a bit high? D...
Forum Discussion
wa8yxm wrote:
Well, with the duals it sounds like you are carrying about 2x the weight on the rear.. So
85 front times contact area is the load they can carry (At that pressure)
Same in the rear, only you have 2x the contact area cause you have 2x the tires.
It is not that simple but that is close enough I think to bring understanding.
(The rest has to do with heat dissipation and such, Duals not as good at it)
On some motor homes the rear may run "Softer" (lower PSI) on others higher On mine the same.
Thanks again for the forthright information and logic. On my previous winnebago 30 T I reduced the psi from 85 to chart recommended 80 and vastly improved the ride. Amazing what 5% less air does to expansion joints.
