Oliver Legacy Elite II2017 Owner's Manual page 55

P
The "P" indicates the tire is for passenger vehicles.
Next number
This three-digit number gives the width in millimeters of the tire from
sidewall edge to sidewall edge. In general, the larger this number is, the
wider the tire.
Next number This two-digit number, known as the aspect ratio, gives the
tire's ratio of height to width. Numbers of 70 or lower indicate a short
sidewall for improved steering response and better overall handling on dry
pavement.
R
The "R" stands for radial. Radial ply construction of tires has been the
industry standard for the past 20 years.
Next number
This two-digit number is the wheel or rim diameter in inches. If you change
your wheel size, you will have to purchase new tires to match the new wheel
diameter.
46