Soya Supersonic August 10, 2004 Share August 10, 2004 HOW TIRES ARE RATED. NHTSA rates the quality of tires based on three criteria: temperature, traction and treadwear. TEMPERATURE. Letter grades are used to rank tires for heat resistance, graded "A" (highest); "B," or "C" (lowest). A "C" grade represents the minimum performance standard required by Federal regulation. Currently, 27 percent of tires are rated "A;" 59 percent are rated "B;" and 14 percent are rated "C." A tire ↡ Advertisement Link to post Share on other sites More sharing options...
Jazziegirl Clutched August 11, 2004 Share August 11, 2004 COOL! thanks bro! ↡ Advertisement Link to post Share on other sites More sharing options...
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