Quote:
|
But you should never over-inflate your tires. They'll get you slightly better fuel economy because there will be less tread touching the road, reducing friction.
|
Someone obviously flunked high school physics.
Morbo says: That's not how friction works.
friction force = mu*force_normal
mu is a material property, not a geometric property
force_normal is dependent on mass and the angle of the road surface relative to the gravity vector.
Period
There's a high school physics demo involving a non cubical block of wood and a fish scale.... Drag the block of wood with a large contact patch - measure drag force... Now drag it on it's side (smaller contact patch) - wouldn't ya know, same exact drag force
To be fair, there is adhesion - but that's insignificant for treaded tires (compared to non treaded tires you're likely to see on a race track).