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Tyre Load-speed Indicator

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TYRES & WHEELS Within the EC, tyres must be marked with a Load Index (LI) and Speed Symbol, which designate the maximum carrying capacity per tyre at the maximum speed. For trailer use, Car tyres may be given a bonus loading of 5% and Commercial Van tyres 10% due to the reduced speed limits that apply to trailers (in Ireland 80 kph). However, we would generally recommend working within the Load Index designation to allow for the possibility of operation over the normal speed limitations. LI 67 68 69 70 71 72 73 74 75 76 77 Kg 307 315 325 335 345 355 365 375 387 400 412 LI 78 79 80 81 82 83 84 85 86 87 88 Speed Symbol Max MPH Max KPH Kg 425 437 450 462 475 487 500 515 530 545 560 F 50 80 LI 89 90 91 92 93 94 95 96 97 98 99 G 56 90 LOAD INDEX Kg LI Kg 580 100 800 600 101 825 615 102 850 630 103 875 650 104 900 670 105 925 690 106 950 710 107 975 730 108 1000 750 109 1030 775 110 1060 LI 111 112 113 114 115 116 117 118 119 120 121 SPEED SYMBOLS J K L 62 68 75 100 110 120 Kg 1090 1120 1150 1180 1215 1250 1285 1320 1360 1400 1450 M 81 130 N 87 140 LI 122 123 124 125 126 127 128 129 130 131 132 P 93 150 Kg 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 Q 100 160 LI 133 134 135 136 137 138 139 140 141 142 143 Kg 2060 2120 2180 2240 2300 2360 2430 2500 2575 2650 2725 R 106 170 The maximum tyre pressure marked on the tyre is usually compatible with the load Index and speed symbol. If in doubt, check with the manufacturer