The vertical portion of the tire that extends from the road surface to the bead. Sidewall construction and depth affects the ride and handling of the tire.
Uniform Tire Quality Grade standards were developed to equip consumers with information to compare tires based on relative treadwear, traction and temperature capabilities. This grading is mostly used for all season tires for passenger vehicles.
These are narrow bands in the tread grooves that provide a visual warning that your tires need to be replaced. They become visible when the tread depth is below the legal limit of 1.6mm.
The load index indicates the tire's relative load carrying capabilities. The numbers correspond to a set index, with higher numbers indicating the ability to carry a heavier load.
This indicates the relative strength of tires by identifying the actual number of plies used in the tire's construction.
Branding on a tire’s sidewall will list the materials and number of layers of each material used to reinforce the rubber.
It indicates a Severe Snow Conditions rating. These tires are designed for cold weather and severe snow conditions, and have been performance tested to meet or exceed industry established snow traction performance requirements.
The M+S (also displayed as M&S or M-S) indicates the tire has all season capabilities. Tires bearing this mark offer great traction and can be used in rain, snow, and muddy conditions. However it does not mean the tire has passed any road tests ensuring effectiveness in severe winter conditions.