From what I have always heard, is that the standard is not closely regulated by the DoT. So it is difficult to compare the TW ratings from one company to the next. But when looking at just one manufacturer you would think they would have a metric they base each their tires off of and thus the consumer can use that information when considering to purchase tire A vs tire B. If they are really stamping 200TW on a tire just to meet a regulation for a competition that is not good business. If I was a competitor at the manufacturer level you better bet if the TW continues to go unregulated. I would have to follow suit to make sure my sticky compound meets the requirements set forth by the competition's governing body so that I meet the demand of that market.
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