Quote:
Originally Posted by CapriRacer
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. |
I wonder why it is then, that most of the fuel economy "supercars" (even those made recently) have used very narrow tires with tall aspect ratios? Is it aerodynamics? Surely VW had this data when designing the XL1.