Quote:
Originally Posted by sbergman27
Note that the two options are 175/65R/14 and 185/60R/15
So it's not just the wheel. The 14 inch wheel gets a tire which is 0.4 inched narrower, but due to the 65 profile the sidewall is actually *taller*. The end result is that the 15 inch wheel option is only about 3.4% greater diameter than the 14.
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actually the sidewall on the 14" tire is 175mm*0.65 = 111mm and the sidewall on the 15" tire is 185mm*.6 = 111mm
sidewalls are the same, just the wheel is 1" smaller....so the overall height of the wheel/tire setup is 1/2" shorter....thats the 3.4% difference in diameter