Any object moving through the air has an area of high pressure in front of it. The air will flow smoothly over the front side and eventually separate at the back of the object. As it happens with a golf ball, the dimples on the wheel allow it to roll through the air, leaving a turbulent wake of low pressure behind it.
Wheels
EVForged Wheel
Our EVForged Wheels feature removable inserts with dimples that create a very thin boundary layer of turbulent air on the surface of the wheel, and this allows the flowing air to follow the surface contours further to the back reducing the drag.