235/55 R19 Tyres Explained

235/55 R19 is a common tyre size for larger cars, crossovers and many SUVs. The numbers tell you the tyre dimensions. 235 is the tyre width in millimetres. 55 is the aspect ratio, so the sidewall height is 55% of 235mm (about 129mm). R19 means the tyre fits a 19 inch wheel. This size is often fitted to SUVs and 4x4s, and to heavier or higher riding cars that need extra load capacity. You'll find premium options here from Michelin, Continental, Pirelli, Goodyear and Bridgestone. mid range manufacturers include Hankook, Yokohama, Toyo and Kumho. Value and budget choices on the page include Tomket, iLink and Nankang. You can buy this size in well known models such as the Michelin CrossClimate 2 SUV or the Continental EcoContact 6. To confirm this is the right size for your car, check the tyre sidewall, the driver's door sticker or your vehicle handbook - or enter your registration for exact matches.

The first 3 sets of numbers that you will see when reading a tyre size tell you the width, profile and diameter of your tyre. In this case, for the tyre size 235/55 R19 this is broken down as follows: 235 - the width of the tyre in millimetres. In this case 235mm wide. 55 - the height of the sidewall as a percentage of the width. In this case 55% R19 - the diameter of the tyre's inner rim in inches. Essentially what size of wheel this is intended to be fitted onto. For this size, that is a 19 inch wheel

If you are looking for the recommended tyre pressure for 235/55 R19 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 235/55 R19 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 235/55 R19 tyre is calculated by using the profile information of the tyre size. In this instance 55. This tells us that it is 55% 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 235mm, we can work out that the sidewall height is 55% of 235 – this comes to 129.25mm.