Service Description
The service description provides two important facts about the tire. First, the number designation is it's load index.
Second, the letter designation indicates the tire's speed rating. The rating will appear with the load index following the
size designation in the Service Description
STREET CHARTS
Index Rating
LI
lbs.
LI
lbs.
LI
lbs.
LI
lbs.
LI
lbs.
20
176
33
254
46
375
59
536
72
783
21
182
34
260
47
386
60
551
73
805
22
187
35
267
48
397
61
567
74
827
23
193
36
276
49
408
62
584
75
853
24
198
37
282
50
419
63
600
76
882
25
204
38
291
51
430
64
617
77
908
26
209
39
300
52
441
65
639
78
937
27
215
40
309
53
454
66
661
79
963
28
220
41
320
54
467
67
677
80
992
29
227
42
331
55
481
68
694
81
1019
30
234
43
342
56
494
69
716
82
1047
31
240
44
353
57
507
70
736
83
1074
32
247
45
364
58
520
71
761
84
1102
Load Rating - A numerical code which corresponds to the total load carrying capacity at the speed indicated by the speed symbol.
