Quote:
Originally Posted by elhigh
...... I generally think taller/narrower is the way to go, other factors being equal.
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Ah ..... Mmmmm ...... not exactly.
The data seems to point to wider and taller being better. See my web page on the subject:
Barry's Tire tech - Rolling Resistance and Fuel Economy
The best guess as to why that is is that the increase in load carrying capacity causes a greater reduction in RR than the effect the smaller volume of material.
But, again, a tire size change is so small a change if everything else is equal, that it's hardly worth mentioning! Differences in the make and model of tire are SOOOO much larger.