Reinen
Well-Known Member
Of course it's at least 10% better. The point is that AT tires just make the requirements while winter tires greatly exceed it. The stopping distance of the best AT tire in snow & ice is about double that of the best winter tires. Its not even close, yet they both carry the same rating as if they're comparable.Most of that is correct, but I think it's at least ten percent better, and although it's an acceleration test in the US, those tires were tested for braking as well. The US doesn't test braking, but to meet the 3PMSF designation in other countries it has to include braking...so although we don't test for braking, if it has the 3PMSF, it meets a standard for braking.
It's not the same as a tire with 130 - 150 traction rating, but it's certainly better than a tire with less than.
The fact that people even discuss these tires in the same conversation shows how bad and misleading the 3PMSF rating is.
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