Thursday Tip: Tyres Sizes, What Do They Mean?
Understanding the code
The tyre size might read like this: P205/55 R16 91V. Hardly user friendly but, when you know what it all means, you’ll realise it tells you useful information about the tyre’s construction, size and type.
Where can I find my car’s tyre size?
You’ll find you car’s tyre size on the tyres’ sidewall, in your car’s vehicle manual as well as on a sticker inside the driver’s door.
1 Cross section width
The first three numbers, in this case 205, refer to the section width of the tyre. This is the measurement, in millimetres, from the tyre’s inner sidewall to its outer sidewall.
2 Profile / Aspect ratio
The aspect ratio, or profile, refers to the height of the sidewall as a % of the section width. In our example, 55 means the height is equal to 55% of the 205mm width. The bigger the aspect ratio, the bigger the sidewall will be.
3 Construction type
The letter R means the tyre is a radial construction. Almost all new car tyres are radials.
The number to the right of the construction type is the rim diameter, measured in inches. In this case, it’s a 19” wheel.
5 Load index
The final number (91) is the load index i.e. the maximum load (in kg) that the tyre can carry. See chart below
6 Speed symbol
The final character (in this case V) relates to the maximum speed of use. Again, the following table will clarify what your tyre’s symbol means.
Get Your Tyres Checked!
If you follow these five steps, you will have given yourself the best possible chance to avoid any issues related to your tyres.
As we have seen, your car’s tyres are critical to road safety. Therefore, it is imperative that you check your tyres constantly. As with anything, if problems are left unchecked, no matter how big or small they are, they can wreak havoc on other parts of the car.
Book your tyre inspection in Gorey with Oliver’s Car Service Centre today!
To book your tyre inspection and test please use the form below.
Read more tips on tyres
The tyres on your vehicle are the only part of your vehicle in contact with the road.
Therefore, they play a key role in vehicle safety.
Car Service: Checking Tyre Tread DepthCar...
Car Service: Checking Tyre Tread Depth
Why is the depth of tyre tread important? Making sure that your car tyres are legal is a fairly quick and in-expensive operation. It usually involves a visual inspection of your tyres, not just the outside but the inside of the tyres as well. Tyres, if the wheels are not aligned correctly, can wear on either outside rim or across the middle so you need to make sure you check them all over. Any signs of baldness, any sign of wire or flat spots means that the tyre almost certainly needs replacing.
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*Warranty requires compliance with recommended precautions and follow-up procedures. These are written on the invoice when applicable. The client should discuss them with the staff if necessary. When necessary Oliver’s Car Services – We Fix Cars. will arrange low cost, alternate transportation during warranty repairs. This warranty does not extend to consequential damages, or repairs, which have been tampered with by any person not authorized by Oliver’s Car Services – We Fix Cars or abuse or neglect of the vehicle. Warranties do not cover symptoms, which occur above legal speeds.
IMPORTANT: To receive warranty repairs, the client must:
- A. Notify We Fix Cars of the concern as soon as possible.
- B. Allow We Fix Cars to diagnose and repair the concern.
- C. If out of the Gorey area, call Oliver’s Car Services – We Fix Cars on 0539102416 for special arrangements with one of our many Independent Associate’s nationwide.