Trailer Load Range ChartĮach Special Trailer (ST) service tire has a rated load range. For example, if the tire size is 4.80 X 12B, then you know the section width is 4.80 inches. Numeric: The first set of numbers identifies the section width in inches.For example, if a tire’s size was ST 175/80-R13 LRD, the 175 identifies the section width as 175 millimeters. This number designates the width of the tire in millimeters. Metric: A three-digit number follows the letters that identify the service type.

The trailer tire width refers to the distance from the widest point of a tire’s outer sidewall to the widest point of its inner sidewall this distance is measured once the tire is mounted on the wheel it is going to be used with. Check the below Trailer Tire Size Chart to find the perfect dimension of the needed tire, and it’s specifications like Load range, Rim width and overall diameter.

It’s absolutely necessary to use trailer tires for trailers, and not for cars as they are engineered for different usage. Trailer tire sizes are broken into main groups 12 inches and smaller and 13 inches and larger. This post was last updated on May 24th, 2022 at 09:34 pm

Trailer tires