LT tires on TT
I was telling a buddy of mine how I upgraded my TT tires from ST's to LT's (Michelin RIBS) and he would like to upgrade to LT's also. He asked if he could go to any LT tire as long as they had the cor...
Forum Discussion
coolbreeze01 wrote:
I thought this was interesting:
"Every tire sold in the United States must be capable of earning a "C" rating which indicates the ability to withstand 85 mph speeds. While there are numerous detail differences, this laboratory test is similar in nature to those used to confirm a tire's speed ratings.
That quote isn't from any regulatory source- it's from this Tire Rack page, and it can only be understood in its proper context. The page/quote relate strictly to passenger car (P) tires, the only class of tires subject to UTQG ratings.
That page's accuracy is generally good, though I'll point out one error I think worthy of mention/correction:
The first paragraph seems to indicate that LT tires except for "deep-treaded" ones are included in UTQG system. Unless there's been a very recent change to the law, that is not correct. During drafting of those rules, the industry successfully resisted/defeated efforts on the part of Regulators to include LT's in the UTQG system.
