🦘 How To Read Tyre Dimensions

The first of the two numbers is the nominal section width of the tyre. It is given in millimetres and defines the distance between the inner and outer sidewall of the tyre. For example, 205 means that your tyre is nominally 205 mm wide. The second number is the relationship between a tyre’s sidewall height and the tyre's width. Section width. The first number in a tire size is the width of the tire in millimeters. For example, an LT 265/75R18 has a section width of 265 millimeters, meaning the tread section is that wide. So clearly, the lower the number, the thinner the tire and the higher the number, the wider it is. A monkey wrench gets thrown into the equation when This is a quick tutorial on How To Read A Bicycle Tire Size.Knowing what size your bicycle tire size is crucial to knowing what tires you will need to order. The first of the two numbers is the nominal section width of the tire. It is given in millimetres and defines the distance between the inner and outer sidewall of the tire. For example, 205 means that your tire is nominally 205 mm wide. The second number is the relationship between a tire’s sidewall height and the tire's width. 180. The first number indicates the width of the tyre in millimetres, taken from the widest point of the tyre. 55. The second number indicates the aspect ratio (or height) of the tyre. This is represented as a percentage of the width of the tyre. In this example then, the height of the tyre is 55% of 180mm, which equates to 99mm. With LT-metric tires, you will see a load range stamped on the tire sidewall. Next to this, the tire will state the ply rating of any given light truck tire. However, with P-metric sizes, you will not see this. These tires will only show whether the tire is Extra Load (XL) or Light Load (LL). Flotation tire sizes are unique to off-road tires and range in size from 31-44". Rather than the millimeter-based tire size expression detailed above, flotation tires are expressed in inches, however metric equivalents may be available. For example, LT325/65R18 (in inches) is also 35X13.00R18 (in millimeters). Locate your tire size on the sidewall of the tire. The first number represents the overall. WIDTH when mounted and inflated to the proper air pressure but it is measured in millimeters. Divide this number by 25.4 to convert to inches. This will become the second number for a traditional ATV tire size. The second number represents the aspect The first number is the section width of the tire. The second number is the rim (wheel) size. For example if you take the 12x16.5 tire, the width or top tread area of the tire is going to be 12” wide, and the rim (wheel) size this tire would fit on would be 16.5” rim. Sometimes there are more than 2 numbers. Your tyre profile relates to the depth of your tyre’s sidewall expressed as a percentage of the tyre’s width. In the above example, 205/40R17, the tyre profile is 40, meaning the depth of the sidewall is 40% of the 205mm tyre width. Does low profile = better performance? Low profile tyres generally have an aspect ratio lower than 50%. Tire Size Description. The tire size is by far the most significant piece of information printed on a sidewall. Let's have a look at how to read it correctly first. The size of the tire will be represented as follows in most cases: P225/40/R17. Note: While the numbers will differ from tire to tire, the formatting will remain the same. On MICHELIN tyres, you can easily identify them by the little Michelin Man symbol that appears in several places on the sidewall of the tyre. When you see the Michelin Man, you know that the wear indicators are arranged in line across the width of the tyre. When the treads on your tyre are worn down to the same level as the wear indicators, the 5.00-16: This is the number you are looking for. The first number (5.00) is the tire width in inches. 5.10 = 127 millimeters. The second number is the rim size or rim diameter which in this case is 16 Inches. Numeric tire sizes typically run from 2.75 or 80mm or MH all the way to 6.0 or 150mm or MV. The dimension of the go-kart tire refers to its size. An example would be 10 x 6.5 – 5, which makes reference to the height, width a rim diameter. There is a dedicated article if you want to learn how to read go kart tire sizes. Position. This indicates which position the tire is mounted onto the go-kart. Find the information in your vehicle owner’s manual in the glove compartment or on the tire information sticker on your driver’s side door. Usually those elements contain all the information related to your tire size and specifications as well as the appropriate tire pressure. 2QLig.

how to read tyre dimensions