146 Here for the journey. SPEED INDEX SI km/h mph G 90 56 J 100 63 K 110 69 L 120 75 M 130 81 N 140 88 P 150 94 Q 160 100 R 170 106 S 180 113 T 190 118 H 210 130 SPEED INDEX SI km/h mph A1 5 3 A2 10 6 A3 15 9 A4 20 13 A5 25 16 A6 30 19 A7 35 22 A8 40 25 B 50 31 C 60 38 D 65 41 E 70 44 F 80 50 PLY RATING / LOAD EQUIVALENCE Load Range A B C D E F Ply Rating 2 4 6 8 10 12 LOAD INDEX LI kg lb 28 100 220 29 103 227 30 106 233 31 109 240 32 112 246 33 115 253 34 118 260 35 121 266 36 125 275 37 128 282 38 132 290 39 136 299 40 140 308 41 145 319 42 150 330 43 155 341 44 160 352 45 165 363 46 170 374 47 175 385 48 180 396 49 185 407 50 190 418 51 195 429 52 200 440 53 206 453 54 212 466 55 218 480 LOAD INDEX LI kg lb 56 224 493 57 230 506 58 236 519 59 243 535 60 250 550 61 257 565 62 265 583 63 272 598 64 280 616 65 290 638 66 300 660 67 307 675 68 315 693 69 325 715 70 335 737 71 345 759 72 355 781 73 365 803 74 375 825 75 387 851 76 400 880 77 412 906 78 425 935 79 437 961 80 450 990 81 462 1016 82 475 1045 83 487 1071 LOAD INDEX LI kg lb 112 1120 2464 113 1150 2530 114 1180 2596 115 1210 2662 116 1250 2750 117 1280 2816 118 1320 2904 119 1360 2992 120 1400 3080 121 1450 3190 122 1500 3300 123 1550 3410 124 1600 3520 125 1650 3630 126 1700 3740 127 1750 3850 128 1800 3960 129 1850 4070 130 1900 4180 131 1950 4290 132 2000 4400 133 2060 4532 134 2120 4664 135 2180 4796 136 2240 4928 137 2300 5060 138 2360 5192 139 2430 5346 LOAD INDEX LI kg lb 140 2500 5500 141 2570 5654 142 2650 5830 143 2720 5984 144 2800 6160 145 2900 6380 146 3000 6600 147 3070 6754 148 3150 6930 149 3250 7150 150 3350 7370 151 3450 7590 152 3550 7810 153 3650 8030 154 3750 8250 155 3870 8514 156 4000 8800 157 4120 9064 158 4250 9350 159 4370 9614 160 4500 9900 161 4620 10164 162 4750 10450 163 4870 10714 164 5000 11000 165 5150 11330 166 5300 11660 167 5450 11990 LOAD INDEX LI kg lb 0 45 99 1 46.2 102 2 47.5 105 3 48.7 107 4 50 110 5 51.5 113 6 53 117 7 54.5 120 8 56 123 9 58 128 10 60 132 11 61.5 135 12 63 139 13 65 143 14 67 147 15 69 152 16 71 156 17 73 161 18 75 165 19 77.5 171 20 80 176 21 82.5 182 22 85 187 23 87.5 193 24 90 198 25 92.5 204 26 95 209 27 97.5 215 LOAD INDEX LI kg lb 84 500 1100 85 515 1133 86 530 1166 87 545 1199 88 560 1232 89 580 1276 90 600 1320 91 615 1353 92 630 1386 93 650 1430 94 670 1474 95 690 1518 96 710 1562 97 730 1606 98 750 1650 99 775 1705 100 800 1760 101 825 1815 102 850 1870 103 875 1925 104 900 1980 105 925 2035 106 950 2090 107 975 2145 108 1000 2200 109 1030 2266 110 1060 2332 111 1090 2398 Load and Speed Ratings ❱PLY RATING Originally tyres were marked with the exact number of canvas layers (plies) built into the tyre. This was an indication of the strength of the tyre. As stronger materials were developed, the number of layers could be reduced - maintaining the same strength of the tyre. The designation ”Ply Rating“ therefore does not indicate the actual number of layers (plies) in the tyre, but the number of layers originally required to give the desired load capacity. When working with PR marked tyres, the actual manufacturers data must be used to determine the load capacity in kg (or pounds). This lead to a new distinction. Load Range as shown below. ❱LOAD AND SPEED RATINGS On the sidewall of a tyre you can find the load index and Speed Symbol following the key sidewall size markings. • The Load Index is a numerical code associated with the maximum load a tyre can carry. • The Speed Symbol indicates the speed at which the tyre can carry a load corresponding to its load index ❱SPEED SYMBOL CONVERSION CHART
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