Quote:
Originally Posted by Nathan jones
Not true, tires with a smaller diameter only have less contact area (resistance) if they are not inflated to a equal weight ratio pressure. Which if you were changing wheels is not something you would miss. In real driving enviroment the net efficiency of smaller lighter wheels is larger so as phase says swapping for smaller wheels whether highway or not is still more efficient
Also using a 5.5j/185mm tire on a regular car pumped up to low contact would have very low grip in wet conditions irrespective of the overall diameter
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less wet grip when over inflated, but over inflated tires hydroplane less. fun fact. so pick your poison