Reading and Understanding Tire Sizes

tire SAFETY > Reading and Understanding Tire Sizes

The size of most passenger and light truck tires is represented by a combination of letters and numbers that can be found on the tire sidewall. The photograph below shows an example of a 205/60R16 92H passenger tire.

What Does it Mean?

205	This is the Section Width. It is the width of the tire from sidewall to sidewall, in millimeters. This tire is 205 millimeters wide.
60	This is the Aspect Ratio, and is the ratio of the sidewall height to the Section Width. The sidewall height of this tire is 60% of the Section Width, or 123 mm.
R	The "R" indicates that this tire is a radial. All TRAZANO tires are radials and built to the highest quality standards.
16	This is the Wheel Diameter that the tire fits, in inches. This tire will only fit a 16" wheel.
92	This is the nomenclature used to indicate the Load Carrying Capacity of the the tire. See the Load Index Chart for more information.
H	This is an alphanumeric indicator used to designate the maximum speed at which a properly installed and inflated tire may be driven. An H rated tire can be driven at speeds up to 130 mph. See the Speed Rating Chart page for more information.