Posted by Tire Guy on August 18, 1999 at 22:03:48:
In Reply to: Tire Size posted by Bob on August 18, 1999 at 11:24:49:
The difference between two tires of the same size, but different brands is how the manufacturer crowns the tread to the side wall of the tire. The tire size measures height from center opening to tread, and the width is measured from sidewall to sidewall, measuring through the wheel opening. It is possible, and very common, for one brand of tire to look wider because the actual tread is wider, even though the size of the tire is the same. From experience, I would agree that the Pirelli tire is a better riding tire than the Goodyear. It is a common complaint at the Mercedes dealership I work at that the Goodyears (and the MXV4s) ride hard and loud.