Tire size is a code on the side of a tire that tells you its width, sidewall height, and the wheel size it fits.

Load Index on a tire indicates the maximum weight it can support when properly inflated/mounted.

The Speed Rating on a tire is a letter code that shows the top speed it can safely handle when properly inflated/mounted.

The sidewall is the section of the tire extending from the tread down to the bead. It provides lateral stability.

Numeric / Alpha Numeric code designated by the Tire Manufacturer.

The "ply," is structure of layers that provides the tire's strength and structure.

The physical weight your tire.

Tread Depth in 32nds of an inch