Speed Index
This is a letter designation on the tyre sidewall which indictes the maximum speed at which a tyre is designed to be operated
| Speed symbol |
J |
K |
L |
M |
N |
P |
Q |
R |
S |
T |
U |
H |
V |
Z |
W |
Y |
| Speed (km/h) |
100 |
110 |
120 |
130 |
140 |
150 |
160 |
170 |
180 |
190 |
200 |
210 |
240 |
>240 |
270 |
300 |
| Speed (mph) |
62 |
68 |
75 |
81 |
87 |
93 |
99 |
106 |
112 |
118 |
124 |
130 |
149 |
>150 |
168 |
186 |
Load Index
Tyres are specified by the manufacturer with a maximum load rating. Loads exceeding the rating can result in unsafe conditions that can lead to steering instability and even rupture
| LI |
KG |
LI |
KG |
LI |
KG |
LI |
KG |
LI |
KG |
| 19 |
77,5 |
36 |
125,0 |
53 |
206 |
70 |
335,0 |
87 |
545,0 |
| 20 |
80,0 |
37 |
128,0 |
54 |
212,0 |
71 |
345,0 |
88 |
560,0 |
| 21 |
82,5 |
38 |
132,0 |
55 |
218,0 |
72 |
355,0 |
89 |
580,0 |
| 22 |
85,0 |
39 |
136,0 |
56 |
224,0 |
73 |
365,0 |
90 |
600,0 |
| 23 |
87,5 |
40 |
140,0 |
57 |
230,0 |
74 |
375,0 |
91 |
615,0 |
| 24 |
90,0 |
41 |
145,0 |
58 |
236,0 |
75 |
387,0 |
92 |
630,0 |
| 25 |
92,0 |
42 |
150,0 |
59 |
243,0 |
76 |
400,0 |
93 |
650,0 |
| 26 |
95,0 |
43 |
155,0 |
60 |
250,0 |
77 |
412,0 |
94 |
670,0 |
| 27 |
97,5 |
44 |
160,0 |
61 |
257,0 |
78 |
425,0 |
95 |
690,0 |
| 28 |
100,0 |
45 |
165,0 |
62 |
265,0 |
79 |
437,0 |
96 |
710,0 |
| 29 |
103,0 |
46 |
170,0 |
63 |
272,0 |
80 |
450,0 |
97 |
730,0 |
| 30 |
106,0 |
47 |
175,0 |
64 |
280,0 |
81 |
462,0 |
98 |
750,0 |
| 31 |
109,0 |
48 |
180,0 |
65 |
290,0 |
82 |
475,0 |
99 |
775,0 |
| 32 |
112,0 |
49 |
185,0 |
66 |
300,0 |
83 |
487,0 |
100 |
800,0 |
| 33 |
115,0 |
50 |
190,0 |
67 |
307,0 |
84 |
500,0 |
- |
- |
| 34 |
118,0 |
51 |
195,0 |
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