Definitions for "Rolling Radius"
Keywords:  tire, radius, radium, road, tyre
Radius of loaded tire from axis to center of tire footprint.
The radius of a rigid wheel which covers the same distance covered by a tyre, performing an equal number of turns. It has an intermediate value between the free radius and the load radius and varies for a given tyre according to the type of road and load, the pressure and the speed.
1) Diameter of a tire under the weight of a car. 2) Distance from center of the tire to ground.