Technology

Tire Basic

Tire Load and Speed Indicator

Load index, Speed Symbol, Air Pressure Conversion - items to be familiar, regarding your tires.

Load Index(LI)

The load index indicates the maximum load per 1 model of a tire. For example, a tire with LI of 100 has a maximum load bearing capability per model of 800kg.

Ll Kg Lbs Ll Kg Lbs Ll Kg Lbs
0 45 99 94 670 1,477 187 9750 21,499
1 46.2 102 95 690 1,521 188 10000 22,050
2 47.5 105 96 710 1,566 190 10600 23,373
3 48.7 107 97 730 1,610 191 10900 24,035
4 50 110 98 750 1,654 192 11200 24,696
6 53 117 99 775 1,709 193 11500 25,358
7 54.5 120 100 800 1,764 194 11800 26,019
8 56 123 101 825 1,819 195 12150 26,791
9 58 128 102 850 1,874 196 12500 27,563
10 60 132 103 875 1,929 197 12850 28,334
11 61.5 136 104 900 1,985 198 13200 29,106
12 63 139 105 925 2,040 199 13600 29,988
13 65 143 106 950 2,095 210 14,000 30,870
14 67 148 107 975 2,150 201 14,500 31,973
15 69 152 108 1,000 2,205 202 15,000 33,075
16 71 157 110 1,060 2,337 203 15,500 34,178
17 73 161 111 1,090 2,403 204 16,000 35,280
18 75 165 112 1,120 2,470 206 17,000 37,485
19 77.5 171 113 1,150 2,536 207 17,500 38,588
20 80 176 114 1,180 2,602 208 18,000 39,690
21 82.5 182 115 1,215 2,679 209 18,500 40,793
22 85 187 116 1,250 2,756 210 19,000 41,895
23 57.5 127 117 1,285 2,833 211 19,500 42,998
24 90 198 118 1,320 2,911 212 20,000 44,100
25 92.5 204 119 1,360 2,999 213 20,600 45,423
26 95 209 120 1,400 3,087 214 21,200 46,746
27 97 214 121 1,450 3,197 215 21,800 48,069
29 103 227 122 1,500 3,308 216 2240 4,939
30 106 234 123 1,550 3,418 217 23,000 50,715
31 109 240 124 1,600 3,528 218 23,600 52,038
32 112 247 126 1,700 3,749 219 24,300 53,582
33 115 254 127 1,750 3,859 220 25,000 55,125
34 118 260 128 1,800 3,969 221 25,750 56,779
35 121 267 129 1,850 4,079 222 26,500 58,433
36 125 276 130 1,900 4,190 223 27,250 60,086
37 128 282 131 1,950 4,300 224 28,000 61,740
38 132 291 132 2,000 4,410 225 29,000 63,945
39 136 300 133 2,060 4,542 226 30,000 66,150
40 140 309 134 2,120 4,675 227 30,750 67,804
41 145 320 135 2,180 4,807 228 31,500 69,458
42 150 331 136 2,240 4,939 230 33,500 73,868
43 155 342 137 2,300 5,072 234 34,500 76,073
44 160 353 138 2,360 5,204 232 35,500 78,278
46 170 375 139 2,430 5,358 233 36,500 80,483
47 175 386 140 2,500 5,513 234 37,500 82,688
48 180 397 141 2,575 5,678 235 38,750 85,444
49 185 408 142 2,650 5,843 236 40,000 88,200
50 190 419 143 2,725 6,009 237 41,250 90,956
51 195 430 144 2,800 6,174 238 42,500 93,713
52 200 441 145 2,900 6,395 239 43,750 96,469
53 206 454 146 3,000 6,615 240 45,000 99,225
54 212 467 147 3,075 6,780 241 46,250 101,981
55 218 481 148 3,150 6,946 242 47,500 104,738
56 224 494 150 3,350 7,387 243 48,750 107,494
57 230 507 151 3,450 7,607 244 50,000 110,250
58 236 520 152 3,550 7,828 246 53,000 116,865
59 243 536 153 3,650 8,048 247 54,500 120,173
60 250 551 154 3,750 8,269 248 56,000 123,480
61 257 567 155 3,875 8,544 249 58,000 127,890
62 265 584 156 4,000 8,820 250 60,000 132,300
63 272 600 157 4,125 9,096 251 61,500 135,608
64 280 617 158 4,250 9,371 252 63,000 138,915
65 290 639 159 4,375 9,647 253 65,000 143,325
66 300 662 160 4,500 9,923 254 67,000 147,735
67 307 677 161 4,625 10,198 255 69,000 152,145
68 315 695 162 4750 10,474 256 71,000 156,555
70 335 739 163 4875 10,749 257 73,000 160,965
71 345 761 164 5000 11,025 258 75,000 165,375
72 355 783 166 5300 11,687 259 77,500 170,888
73 365 805 167 5450 12,017 260 80,000 176,400
74 375 827 168 5600 12,348 261 82,500 181,913
75 387 853 169 5800 12,789 262 85,000 187,425
75 400 882 170 6000 13,230 263 87,500 192,938
77 412 908 171 6150 13,561 264 90,000 198,450
78 425 937 172 6300 13,892 265 92,500 203,963
79 437 964 173 6500 14,333 266 95,000 209,475
80 450 992 174 6700 14,774 267 97,500 214,988
81 462 1,019 175 6900 15,215 268 100,000 220,500
82 475 1,047 176 7100 15,656 270 106,000 233,730
83 487 1,074 177 7300 16,097 271 109,000 240,345
84 500 1,103 178 7500 16,538 272 112,000 246,960
86 530 1,169 179 7750 17,089 273 115,000 253,575
87 545 1,202 180 8000 17,640 274 118,000 260,190
88 560 1,235 181 8250 18,191 275 121,000 266,805
89 580 1,279 182 8500 18,743 276 125,000 275,625
90 600 1,323 183 8750 19,294 277 128,000 282,240
97 615 1,356 184 9000 19,845 278 132,500 292,163
92 630 1,389 185 9250 20,396 279 136,000 299,880
93 650 1,433 186 95000 209,475
SPEED SYMBOL AND SPEED

Speed Symbol Speed (km/hr) Speed (mph) Speed Symbol Speed (km/hr) Speed (mph)
A1 5 3 K 110 68
A2 10 6 L 120 75
A3 15 9 M 130 81
A4 20 12 N 140 87
A5 25 16 P 150 93
A6 30 19 Q 160 99
A7 35 22 R 170 106
A8 40 25 S 180 112
B 50 31 T 190 118
C 60 37 H 210 130
E 70 43 V 240 149
F 80 50 W 270 168
G 90 56 Y 300 186
J 100 62 Z above 300km/hr above 186 mph
AIR PRESSURE CONVERSION TABLE

kPa bar psi(lbf/in2) kgf/Cm2
100 1.0 15 1.0
150 1.5 22 1.5
200 1.0 29 2.0
250 2.5 36 2.6
300 3.0 44 3.1
350 3.5 51 3.6
400 4.0 58 4.1
450 4.5 65 4.6
500 5.0 73 5.1
550 5.5 80 5.6
600 6.0 87 6.1
650 6.5 94 6.6
700 7.0 102 7.1
750 7.5 109 7.7
800 8.0 116 8.2
850 8.5 123 8.7
900 9.0 131 9.2
950 9.5 138 9.7
1,000 10.0 145 10.2
1,050 10.5 152 10.7

Remark Length : 1 inch = 0.025m(25.4mm), 1mile = 1609m(1.609km)
  Weight : 1 pound(lb) = 0.4536kg
  Pressure : 1 bar =100 kPa, 1 kgf/cm2 = 98.066 kPa, 1 lb per square inch (p.s.i or lbf / in2 ) = 6.895 kPa
  Speed : 1 km per hour (km/h) = 0.27778 m/s, 1 mile per hour(m.p.h) = 0.470m/s (1.60935 km/h)

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