Tire code
Speed rating

Code
km/h
mph
-
Code
km/h
mph
A1
5
3
-
L
120
75
A2
10
6
-
M
130
81
A3
15
9
-
N
140
87
A4
20
12
-
P
150
94
A5
25
16
-
Q
160
100
A6
30
19
-
R
170
106
A7
35
22
-
S
180
112
A8
40
25
-
T
190
118
B
50
31
-
U
200
124
C
60
37
-
H
210
130
D
65
40
-
V
240
149
E
70
43
-
Z
over 240
over 149
F
80
50
-
W
270
168
G
90
56
-
(W)
over 270
over 168
J
100
62
-
Y
300
186
K
110
68
-
(Y)
over 300
over 186

Question: What does code Z in tire code indicate?
Answer: The Z indicated the excess speed of 240 km/h (149 mph).