UNDERSTANDING YOUR TYRES
Tyre size can be found on the sidewall of a tyre and appears as a combination of numbers and letters for example 225/40R18 91Y. Knowing what each section of these numbers and letters mean will make it very easy to find your vehicle tyre size. The below image shows a tyre with a mixture of numbers and letters.
TYRE LOAD RATING
The tyre load rating indicates the maximum weight each tyre is able to carry.
The load rating of a tyre is usually found after the diameter reading and before the speed rating on the sidewall marking.
TYRE SPEED RATING
The speed rating of a tyre is indicated by a letter at the end of the tyre size on the sidewall of the tyre, and specifies the maximum speed your tyre is capable of maintaining.
For example a tyre with a speed rating of “Y” can reach speeds of up to 186mph.
The speed rating of a tyre is usually found after the diameter and load reading on the sidewall marking.