Quote Originally Posted by Scotrod View Post
Can't speak for Steve, but assumably as 175 is closer to 180 than 195 is,,
The 175 tire may be closer to the original width of our OEM tires...of 180. But....the sidewall ratio of 60 on the 175 tire makes it much shorter of a tire than the OEM tire.

180/60-16 tire has a sidewall height of 108
195/55-16 tire has a sidewall height of 107.5
175/60-16 tire has a sidewall height of 105

That sidewall height has a direct affect on the overall diameter of the tire, which in turn affects the speedometer and odometer.

Remember, a difference of 3mm in sidewall height, multiplied by 2, equals an overall difference of 6mm in change.

With a 195/55-16 tire, the total overall change is only 1mm.

Given the choice, I would prefer to run a slightly wider tire, as long as it fits in there, than a slightly narrower tire.