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TIRE LOAD LIMITS (LBS) AT VARIOUS COLD INFLATION PRESSURES (PSI)
FOR ST TRAILER TIRES USED IN NORMAL HIGHWAY SERVICE
Max
Speed
Tire Rating
Size (MPH) 25 30 35 40 45 50 55 60 65 70 75 80
ST205/75R14
65 1170 1300 1430( B ) 1530 1640 1760( C )
ST205/75R15
65 1220 1360 1480( B) 1610 1720 1820( C )
ST215/75R14
65 1270 1410 1520( B ) 1660 1790 1870( C )
ST225/75R15
65 1430 1600 1760( B ) 1880 2020 2150( C ) 2270
1940
2380
2040
2540( D )
2150( D )
2620 2720 2830( E )
ST175/80R13
65 905 1000 1100( B ) 1190 1270 1360( C )
ST185/80R13
65 990 1100 1200( B ) 1300 1400 1480( C )
ST235/80R16
65 1720 1920 2090( B ) 2270 2430 2600( C ) 2730 2870 3000( D ) 3130 3260 3420( E )
Note: Letters in parentheses denote Load Range for which bold-faced loads and inflations are maximum.
Inflation Pressure - PSI
LOAD/INFLATION INFORMATION FOR ST METRIC TRAILER TIRES