15 trailer tire and wheel packages code#

Internal construction: The next part of the code is a single letter (B, D, R) that indicates the internal construction of the tire. For example, for a tire with code 200/65, the section height is 200 × 65% = 130 mm. A tire with the code xxx/65 indicates that the section height of the tire is 65% of its width. The section height is the height of the tire measured from the rim to the outer edge of the tire the section width is the width from sidewall to sidewall. It is a 2- or 3-digit number that indicates the ratio of the tire's section height to its width. In the figure above, the 215 means that the nominal section width of the tire is 215 mm.Īspect ratio: The next part of the code follows the forward slash ( / ). The nominal section width is the widest point of the tire or the width from sidewall to sidewall. Nominal section width: The second part of the code is a 3-digit number that describes the nominal section width of the tire in millimeters (mm). Tires with the T specification are usually spare tires that are not intended for everyday use. These types of tires are used for trailers such as boat trailers, utility trailers, and travel trailers. Tires with the LT specification are designed to carry heavy loads and are capable of towing trailers. Tires with the P specification are intended for use with cars, SUVs, crossovers, minivans, and smaller pickup trucks. Intended use: The first part of the code is made up of 1 or 2 letters (P, LT, ST, T) that describe the type of vehicle that the tire is intended to be used with. Each part of the code describes some characteristic of the tire refer to the figure below.

Being able to read the tire code can be important, particularly when considering getting new wheels or tires, as being able to read the tire code is necessary for calculating things like tire size. Tire 1: / RĬar tires are described by an alphanumeric code, as shown in the figure below. Use this calculator to compare the sizes of two tires both numerically and visually.