Established 1955

Tyre Speed Index

 
You can find the Speed Index (SI) of your tyre on the side wall as shown in the diagram.

In this case it’s a “W” rating which indicating max speed of 270KM/H.

It is important to check the Speed index with your vehicle manufacturers specifications.

tyre-markings3
Tyre Speed Rating Table

Speed RatingSpeed (Miles/H)Km/h
N87140
P93150
Q99160
R106170
S112180
T118190
U124200
H130210
V149240
Z150+240+
W168270
Y186300

Read more about tyre speed ratings.