J_R wrote:
I'm not going to race on a Gator Skin, but I would be interested to know what kind of a number a training tire like has just as a point of reference.
I think AFM has tested those and they're on his list. BTW, for the better performing tires we've both tested, if I put the "smooth to rough" factor at 1X in my spreadsheet to match how Al's numbers are calculated, then our results actually match up fairly well (i.e. within +/-.0001). It's on the slower rolling tires that we digress, with his measurements showing them to be slightly better than mine. My suspicion is that this is mostly likely due to the material differences of our rollers, with mine being aluminum and his being plastic. I think the slower rolling tires heat up more on his rollers and the higher temps give them a slight "advantage" in that setup.
Here's a handy hint I've developed after doing a bunch of this: If a tire has anywhere on it any sort of wording like "iron cloak", or "hardcase", or "gatorskin", or is touted for it's ability to not flat often...that's a pretty good clue it's not going to roll very well.
It's funny...in the hand, that Kenda Kaliente doesn't feel like it would be so bad of a tire. The casing is relatively thin and actually feels fairly flexible. But it is VERY slow. Of course, one of the features touted for it is a "bead to bead" layer of a kevlar
woven belt...the "Iron Cloak" puncture prevention layer! Unfortunately, that's NOT a feature that will result in a low Crr tire.
http://bikeblather.blogspot.com/
