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412 SERVICING AND MAINTENANCE
R = Construction code "R" means radial construction, or "D" means diagonal or bias construction 15, 16, 18 = Rim diameter in inches (in) A numerical code associated with the maximum load a tire can carry H = Speed Symbol A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditions The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and posted speed limits) Load Identification: XL = Extra load (or reinforced) tire, or LL = Light load tire or C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure Maximum Load – Maximum load indicates the maximum load this tire is designed to carry EXAMPLE: |