P-Metric Sized Tires Description

Most P-metric tires do not have exactly corresponding alpha/numeric tire sizes. A P205/75R15 is not equal in size and load carrying capacity to an FR7815. Because of this, replacement tires should be of the same TPC specification number (size, load range, and construction) as those originally on the vehicle. If you must replace P-metric tires with other sizes, consult a tire dealer. Tire companies can best recommend the closest match.

Identify radial-ply by the letter R or Radial on the sidewall. Encoded on the side wall are the tire type, the tire size, and the aspect ratio (eq. P205/75R15).





The following are the code designations:
^ P is passenger car (LT is light trucks)
^ 205 is the section width (1) of the tire
^ R is the radial type design construction
^ 75 is the aspect ratio (2) (height to width ratio)
^ 15 is the rim diameter in inches

An all-season tire has either M+S, M&S, or MS imprinted on the sidewall.