Quote:
Originally Posted by F87source
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For example the exact same size RE71R will tend to be a bit fatter than the more "narrow" fitting RS4 probably due to the RE71R having huge shoulders.
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His reasoning doesn't prove no one follows sizing standardization since we do not know what the standard size tolerances are without purchasing the $125 guide book.
It's totally possible hancook rs4 and bridgestrone re71r can be different sizes and still fit within standard tolerances.
Also, the standardization is not required for snow tires.
I believe what visualecho is doing is mistaking treadwear standards with treadwidth standards. There are treadwear standards, but the test is kinda flawed to where mfgs extrapolate data to give ratings. So manufacturers assign whatever number they see fit after running a standardized test. Leading to treadwear numbers not being comparable between mfgs. This has nothing to do with tire sizing though.