Ran across a tire size conversion table and decided to see what the difference is between the 195-55 than many of us are running and the 175-60 that Darksider # 1 is using and the tire that several others (including me) will be trying sometime in the future.
The 175-60 compared to the 195-55 is:
Sidewall: .1 inch shorter
Radius: .1 inch less
Diameter: .1 inch less
Circumf: .6 inch less
Revolutions: 6 more per mile
Speedometer will be .7 % too fast. In other words (assuming your speedo was correct to begin with:roll
a registered 60mph would actually be 59.6mph.
I found it on the Internet, so it must be gospel.
The 175-60 compared to the 195-55 is:
Sidewall: .1 inch shorter
Radius: .1 inch less
Diameter: .1 inch less
Circumf: .6 inch less
Revolutions: 6 more per mile
Speedometer will be .7 % too fast. In other words (assuming your speedo was correct to begin with:roll
I found it on the Internet, so it must be gospel.