How do I read the tire specifications and labeling on the sidewall of a tire?
Tire labeling is important to understand – there’s a lot of information here, from tire size to treadwear ratings, to speed ratings and more. Here’s how it’s broken down:
1: P stands for passenger.
255 stands for the width of the tread measured in millimeters.
50 stands for the tire’s “aspect ratio”.
R stands for “radial”.
17 stands for the width of your car’s wheels/rims.
You’ll also see a number followed by a letter (93V, for instance).
93 stands for the load rating of the tire.
V is the speed rating.
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