145 indicates the section width of a tyre in millimetres.
80 indicates Aspect Ratio of tyre. This number indicates sidewall height of the tyre as a percentage of tyre width. Here, sidewall height of the tyre is 80% of the width.
R indicates that the tyre has radial ply construction. Almost all car tyres come with radial ply construction.
12 indicates the Nominal Rim Diameter Code
74 indicates Maximum Load Capacity of the tyre. Please refer to the Load Index table.
T is the Speed Symbol and it indicates at the maximum speed for the tyre at full load. Please refer to the Speed Symbol table.
Index | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kg | 265 | 272 | 280 | 290 | 300 | 307 | 315 | 325 | 335 | 345 | 355 | 365 | 387 | 400 | 412 | 425 |
Index | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kg | 437 | 450 | 462 | 475 | 487 | 500 | 515 | 530 | 545 | 560 | 580 | 600 | 615 | 630 | 650 | 670 |
Index | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kg | 690 | 730 | 750 | 775 | 800 | 825 | 850 | 875 | 900 | 925 | 950 | 975 | 1000 | 1030 | 1060 |
Index | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kg | 1090 | 1120 | 1150 | 1180 | 1215 | 1250 | 1285 | 1360 | 1400 | 1450 | 1500 | 1550 | 1600 | 1650 | 1700 |
Speed symbol | N | P | Q | R | S | T | U | H | V | Z | W | Y |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 140 | 150 | 160 | 170 | 180 | 190 | 200 | 210 | 240 | 240+ | 270 | 300 |
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