Directional tire definition
Directional designs are recognized by the grooves in the tread that swipe away in a backward angle from the center of the tread face and rotate in only one direction. A direction of rotation arrow is located on both sidewalls of the tire. Directional tires enhance straight-line acceleration , provide maximum dry traction , and better wet performance which helps to reduce rolling resistance as well as providing shorter stopping distances. See asymmetrical tread and Symmetrical .