Technician A says tire tread patterns must be directional. Technician B says tire tread patterns must be symmetric. Who is correct?

Question

Quizplus · Accepted Answer

Tire tread patterns can be directional, symmetric, asymmetric, or even unidirectional. There is no requirement for them to be exclusively directional or symmetric. Different tread patterns serve different purposes, such as wet grip, noise reduction, or wear characteristics.

Technician a Says Tire Tread Patterns Must Be Directional