Symmetrical
Consistent tread pattern across the tyre's surface. Both sides of the tread face are the same design. These types of tyres are usually used on smaller size tyres or commercial vehicle tyres.

Asymmetrical
Here the tread pattern is virtually totally different across the face of the tyre. These designs incorporate larger tread blocks on the outer portion for increased stability during cornering. The smaller inner blocks make greater use of the grooves to help disperse water and heat. They do tend to be unidirectional tyres.

Directional
This design is intended to rotate in one direction only. They have the lowest rolling resistance of all tyres types’ thus enhancing straight-line acceleration and shorter stopping distances. Unidirectional tyres must be dedicated to a specific side of the vehicle and so the tyres sidewall will always include a rotational direction arrow,so make sure these are turning the right way!