What if they're larger tires? you wouldn't go by the door jam then .. right?
Consult the sidewall of your tire. It should be on there. It varies between different tires.
I want the perfect psi for regular street driving -- not too little, not too much.
My door jamb says "FRT" (or something) at 26 psi and also "RR" at 35 psi.
I'm confused again. What are these two different psi's about?
Mine say Recommended Range and then right next to it Max Pressure.