175/65 R14 Tyres Explained

175/65 R14 is a common tyre size for smaller cars and city driving. Understanding what the numbers mean is fairly straightforward. The 175 is the tyre width in millimetres. 65 tells us the aspect ratio of the tyre - essentially the sidewall height is 65% of 175mm (in this instance about 114mm). And R14 means the tyre fits a 14 inch rim. You'll see this size on many compact and economy vehicles that spend time in town and/or on short motorway trips. This size is stocked from premium manufacturers like Michelin, Continental, Pirelli and Goodyear. It is also available amongst mid range brands like Kumho, Hankook, Yokohama and Vredestein. If you are looking for budget options, brands such as Wanli, Tomket, Mazzini and Dynamo are available. You can find specific models such as the Michelin Energy Saver+ and the Goodyear EfficientGrip Performance in 175/65 R14. Always remember to make sure that the size of tyre you buy is right for your car. You can do this by checking the tyre sidewall of your current tyres, or the driver's door sticker. Alternatively there is the vehicle handbook.

The numbers 175/65 R14 are 3 very important pieces of information in regards to a tyre's size. They tell you the width, profile and diameter of a tyre. For a tyre that is 175/65 R14 this information can be broken down into the following: 175 - the width in millimetres of the tyre. In this case 175mm wide. 65 - the height of the sidewall as a percentage of the width. For this tyre that is 65% R14 - the diameter, in inches, of the tyre's inner rim. Letting you know what size of wheel this tyre should be fitted to. For this size, that is a 14 inch wheel

If you are looking for the recommended tyre pressure for 175/65 R14 tyres, you will find that this will depend on the manufacturer and model. Each vehicle manufacturer has their own tyre pressure recommendation for their model, that will deliver an optimal performance for your vehicle. Check the following if you are unsure what the correct tyre pressure is for your 175/65 R14 tyres Tyre label - this is often the best place to find your tyre pressure information. It is located on the door jamb on the driver’s side of the vehicle. It is a small rectangular label that provides the driver with the recommended tyre pressure and tyre sizes. Vehicle handbook - Quite often the vehicle handbook with contain a section that relates to the technical details for the tyre. This should include the required tyre size, load rating, speed rating and recommended tyre pressure.

The sidewall height of a 175/65 R14 tyre is calculated by using the profile information of the tyre size. In this instance 65. This tells us that it is 65% of the tyre's cross-section width. When looking at a tyre, the sidewall height is the distance between the tread line of the tyre and the rim line. Given that this tyre size has a cross-section width which equals 175mm, we can work out that the sidewall height is 65% of 175 – this comes to 113.75mm.