Tires: tires, wheel diameter, inch tires


Question
I am considering buying a certain small 4-cylinder car. The salesman asked me whether I wanted 13-inch or 14-inch tires. Can you tell me whether 13 or 14 inch tires would give me a better ride and why? Thank you very much. Al Brown

Answer
Al,

I'll need some more information.

Specifically, what vehicle are you considering and what are the 2 tire sizes involved - along with the speed rating of each tire.

As a general rule, vehicle manufacturers go larger in wheel diameter and down in aspect ratio, which is the direction of poorer ride, but better handling.  The difference in tire size and the speed rating are key to determining that.