ATV tires come in different sizes for agricultural and recreational use. The sizing system includes tire height, width, and rim diameter, expressed in inches or millimeters. Different sizes work better for different surfaces, except for sand and street tires, which have specific designs.
For agricultural and recreational use, there is a wide variety of different sizes of All Terrain Vehicle (ATV) tires. The process of choosing the correct ATV tire sizes can be very important depending on the intended use of the vehicle. The size range includes different widths, heights and tread patterns so that an ATV user can select the right type of tire for the ground surface.
ATV tire sizes are identified using a three unit sizing system. This system differs slightly between metric and imperial measurements, but each type refers to the same three components, namely tire height, tire width, and rim diameter. Using the imperial system of tire measurement, dimensions are expressed in the format axb – c, where a refers to the height of the tire, b the width of the tire, and c the diameter of the rim, with all dimensions in inches.
When using the metric system of measurement, the tire labeling format differs slightly. In this system, and using the same denominators as the imperial example above, the dimension is expressed as b/ax c. In this case, the width of the tire, b, is in millimeters, while the diameter of the wheel rim remains an inch measurement. Using the metric ATV tire size labeling system, the denominator a actually refers to the depth of the tire’s sidewall, that is, the distance between the outer edge of the tire and the rim of the wheel. This sidewall depth is a percentage of the tire’s width and is known as the aspect ratio.
The 22 x 10 – 10 ATV tire label provides a demonstration example. This tire has a height or diameter of 22 inches and a tire width of 10 inches and is designed to fit a rim that is 10 inches in diameter. This same tire in metric format is 225/60 x 10. In this metric system, the tire’s sidewall depth is labeled 60, since it is 60% of the tire’s width, 135 millimeters or six inches.
Different sizes of ATV tires work better for different applications. Most ATV tire sizes are suitable for more than one type of surface; General exceptions include those designed for sand or dune racing and tires specifically designed for street or asphalt use. Asphalt tires are similar in design to standard road vehicle tires, while sand tires are often wider with a specially designed tread pattern for digging into soft surface. Most other tire sizes and tread styles are suitable for use on a variety of surfaces from soft clay to hard-packed stone tracks.
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