Quote:
Originally Posted by Bill
The leading indicator of "ST" in the size code means "Special Trailer". As Padgett says, trailer tires - those whose size starts with "ST", such as ST225-75R15 - are rated at 65 mph max. I have heard of exceptions, but have never seen or confirmed one. If there is an exception, the tire manufacturer's web site should specifically spell it out.
Note that the ST nomenclature is not the same as the European speed rating nomenclature. The fact that there is an "S" at the beginning of the size code DOES NOT mean that the tire has an "S" speed rating.
Bill
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Thx, I'll assume max of 65 mph on my Maxxis tires then.