Sidewall Codes

Every tyre shows information relating to its manufacturer, size, and pattern. Below is an explanation/example of the numbers you will find on the sidewall of your tyre.

175/65/R14 82T

• 175 – Width - the tyre has a nominal section width of 175 millimetres
• 65 – Profile - the sidewall height is 65% of the tyre’s nominal section width
• R – Radial tyre
• 14 – Diameter - the tyre fits a 14” diameter wheel
• 82 – Load Index – the load capacity of the tyre is 475 kg (see table below)
• T – Speed Rating - the tyre is rated to 118mph

Reducing the percentage of the sidewall height to the tyre’s nominal section width will enable tyres to be wider and put more tread on the road.

You should always replace a tyre with the same or higher speed rating. Generally, the higher the speed rating, the better the quality and technology of the tyres. This will improve the grip, cornering capability and braking adhesion. It is also recommended that you have the same tyre brand on all 4 tyres. Your insurance can be void if you have the incorrect load index or speed rating for your vehicle.

RF or XL seen on a tyre or within a description stands for reinforced or extra load tyre. This means that each tyre needs to be capable of carrying a greater load capacity than that of a standard tyre of the same size.

The Load Index states the load capacity of each tyre. The table below shows the payload that each index can carry.