One purpose of the testing was to obtain treadwear ratings of seven (7) groups of tires using 7.75-14 NHTSA Primary Control tires produced by Armstrong Tire & Rubber Co. as the reference base. Two of these groups were provided by Goodyear Tire & Rubber and by Uniroyal respectively to demonstrate their possible use as 'Intermediate Control Tires'. Two other purposes of the testing were to determine the treadwear differnce, if any, directly related to approximately similar model cars from different car manufacturers (i.e. Plymouth Satellite vs. Ford Torino); and to set up a treadwear course of 'moderate' severity such that the control tires will be 65 plus or minus 5% worn in 16000 miles.
Uniform Tire Quality Grading-Treadwear
1975
74 pages
Report
Keine Angabe
Englisch
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