4by4th
New member
Tire pressure with different sizes is an abstract thing to think about.
I ride a mountain bike with big off road tires at 30-35 psi. I ride a road bike with high performance skinny racing tires at 110-120 psi. My weight is obviously the same on either bike. Bike weights are close enough to not make a difference. I could ride the mtb with tires at 40 or 45, but cornering traction is significantly better on loose trails at 30 psi. The maximum allowable pressure on the mtb tires is 45 psi or they can blow off the rim. The rims on the road bike would hit the pavement at 30 psi.
I don't understand why truck tires would be any different.
Pounds per square inch tire pressure is the force against the wall of the tire. Larger surface area of bigger tires should require less psi to support the same load as a smaller tire with less surface area.
Hey, I'm an engineer and think about these things in my sleep so help me out here with the reverse logic.
I ride a mountain bike with big off road tires at 30-35 psi. I ride a road bike with high performance skinny racing tires at 110-120 psi. My weight is obviously the same on either bike. Bike weights are close enough to not make a difference. I could ride the mtb with tires at 40 or 45, but cornering traction is significantly better on loose trails at 30 psi. The maximum allowable pressure on the mtb tires is 45 psi or they can blow off the rim. The rims on the road bike would hit the pavement at 30 psi.
I don't understand why truck tires would be any different.
Pounds per square inch tire pressure is the force against the wall of the tire. Larger surface area of bigger tires should require less psi to support the same load as a smaller tire with less surface area.
Hey, I'm an engineer and think about these things in my sleep so help me out here with the reverse logic.