Sam, aspect ratio (A/R) is yet one more measurement of a tire. I say one more because there is a lot of information necessary to classify tires. When you have nothing better to do - and I mean nothing ...
Q: Help! I’m tire shopping and am bewildered by all the numbers. What does 98V mean? Or P225/60VR16? A: Of the numbers you mention, P indicates the tire is for a passenger vehicle (LT is light truck, ...