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Tyre speed rating

NPKĀtruma indekssĀtrums, km / hĀtrums, mphĀtruma indekssĀtrums, km / hĀtrums, mphĀtruma indekssĀtrums, km / hĀtrums, mph
1 A1 5 3 E 70 43 S 180 112
2 A2 10 6 F 80 50 T 190 118
3 A3 15 9 G 90 56 U 200 124
4 A4 20 12 J 100 62 H 210 130
5 A5 25 16 K 110 68 V 240 149
6 A6 30 19 L 120 75 z virs 240 virs 149
7 A7 35 22 M 130 81 W 270 168
8 A8 40 25 N 140 87 (W) virs 270 virs 168
9 B 50 31 P 150 94 Y 300 186
10 C 60 37 Q 160 100 (Y) virs 300 virs 186


Tyre load index

Standard load table (extract from ETRTO standards manual – 2010 page G7 ref 42 psi (290 kPa))

NPKLoad indexWeight, kgWeight, lbsLoad indexWeight, kgWeight, lbsLoad indexWeight, kgWeight, lbsLoad indexWeight, kgWeight, lbs
1 19 77,5 40 140 309 61 257 567 82 475 1047
2 20 80,0 176 41 145 320 62 265 584 83 487 1074
3 21 82,5 182 42 150 331 63 272 600 84 500 1100
4 22 85,0 187 43 155 342 64 280 617 85 510
5 23 87,5 193 44 160 353 65 290 639 86 530
6 24 90,0 198 45 165 364 66 300 661 87 545
7 25 92,5 204 46 170 375 67 307 677 88 560
8 26 95,0 209 47 175 386 68 315 694 89 580
9 27 97,5 215 48 180 397 69 325 716 90 600
10 28 100 220 49 185 408 70 335 736 91 615


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