Quote:
Originally Posted by bret a ewing
Thanks Glen, I have read the UTQS, I thought by my using the word "guide" was suffice to indicate the relative inaccurate nature of the rating.  .
The UTQS mentions, it is common for DOT racing tyres to be assigned very low values - sometimes even zero.
So, IMHO, a tire with a WR of 80 will PROBABLY be softer than one with 440 WR. This information, IMHO, can be a usefull part of the equation (as well as speed rating, reviews, recommendations etc) in choosing a specific performance catagory of tires - Extreme, Max, Ultra, Grand Touring etc.
Of course with race tires, actual testing is the only way to determine what the best compound is for that individual/car/race.
................uh, nevermind 
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Agreed, a treadwear rating of 80 ……..uh, doesn’t matter.
The system, and seat-of-the-pants, won’t always agree with reality. I had some Pirelli P5s years ago that were sensational in the wet, but confused me by lasting 55000 miles on one axle and 59000 on the other.
Glen