[Clint]

Again with the drama. Let's leave "beliefs" out of the discussion, eh? They're not relevant in a scientific discussion, and you'll be more credible without the attitude.

So, I've always been under the impression that treadwear ratings were left to the prerogative of the manufacturer. Is that correct? If so, durometer testing provides more usable data. I'm still curious how these readings are made, and whether there's any bias in the testing. It goes against reason that a tire you state is softer than a motorcycle tire actually lasts so much longer. Doesn't that strike you as odd, especially since the car tires tend to have much smaller tread blocks?