Originally Posted by wphamilton

So I'll get the Vittoria then, and also whatever is cheapest on Amazon to compare it to. I propose to compare the rolling resistance only - not puncture protection, comfort, or use in training - by rolling down an incline multiple times and capturing the speed at given distance intervals. Since I'm not using a power meter I'll start at 0 mph and mxgxh will be the only energy expended, to keep it simple. Then I'll change just the tube and do it again keeping everything else the same including the tire, pressure and weight. Except the rotating weight, I'm not adding the extra weight to the rim to keep that the same but I'll carry the difference in my pocket. The difference between the two sets of test runs will reflect the different rolling resistances, and we will at last be able to put a number to it.