Weight change
Total static weight difference across all four tires from a size or load-range change.
Tire weight
Enter current and new tire weights to see the total added mass and its rotational acceleration effect.
What it does
Total static weight difference across all four tires from a size or load-range change.
Weight at the tire behaves like a hoop, so its acceleration effect is about twice its static mass.
How added tire weight affects acceleration, braking, ride quality, and fuel economy.
A lot for its size, because it is unsprung and rotating. Weight at the tire behaves like roughly twice its mass under acceleration, so a few pounds per tire is felt in acceleration, braking, and ride.
That saying is exaggerated. The defensible figure is that a tire behaves like about 1.6 to 2 times its static weight under acceleration, because its mass sits out at the rim like a hoop.
Modestly. Heavier, more aggressive tires add rolling resistance and rotating mass, which is part of the 1 to 3 mpg loss owners see moving to larger off-road tires.