Which grade on the traction scale indicates poor performance?

The traction scale you are referring to categorizes tire performance based on their ability to provide grip on wet surfaces. A grade of C indicates poor performance, meaning that while the tires may meet minimum safety requirements, they do not provide the optimal traction one would seek in adverse driving conditions, such as rain or slippery roads.

Tires graded with a C may be more likely to experience hydroplaning and reduced handling control when faced with diverse weather conditions. In contrast, grades like AA and A represent superior traction, implying that tires bearing these marks are engineered for better grip and stability, hence are more suitable for safe driving. B is also better than C but not as high-performing as A or AA. Understanding these grades helps consumers make informed decisions regarding their tire purchases, especially if they drive frequently in challenging weather conditions.