Do you know your tyres have a maximum safe speed? Find out how to check your car has the correct rating here

Tyres are built with a maximum speed they are legally approved for, but how can you tell what that legal limit is? Read on to find out all the essential information.

tyres

Your tyre speed rating is indicated by a letter

What is a tyre speed rating?

A tyre speed rating tells you the maximum speed a tyre is legally approved for and allows to you be aware of the top speed your tyre is capable of maintaining.

How are speed ratings determined?

The ratings are achieved through tests performed by engineers. The tyre is run at 6.2mph steps, in ten minute increments, until the required speed has been met.

Tyre speed ratings should be equivalent to the official top speed of your car – fitting cheaper, lower speed-rated tyres, could influence your car insurance.

Where can I find my car’s tyre speed rating?

You’ll find a tyre’s speed rating on the sidewall of the tyre, among the list of numbers. Speed rating is represented by a letter and typically follows a number. See the photo above.

Typically, wider, larger diameter tyres have a higher speed rating. This is due to usually being fitted to higher-performance cars to cope with higher speeds.

Check out the list below to determine the top speed of your motor’s tyres.

As the system is based around the European use of kilometres, the speed ratings are at unusual increments when converted to mph.

Speed rating Max mph Max kph
N 87 140
P 93 150
Q 99 160
R 106 170
S 112 180
T 118 190
U 124 200
H 130 210
V 149 240
Z 150+ 240+
W 168 270
Y 186 300

Don’t forget to check the age of your tyres…

Find out how to check the age of your car tyres and the must-know ways this could prevent a dangerous blow-out and save you money all at the same time. Get the essential information right here.


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