Dot rv tire dating


15-Sep-2017 02:14

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Radial inner belts cross the tire tread perpendicularly, and the shoulders tend to have a rounder shape than bias-type tires.

Radials also tend to have lower rolling resistance and last longer than bias-ply designs.

Belts may be made of metal or synthetic cords such as polyester.

Radials and bias-ply tires have different handling characteristics and should not be mixed.

Trailer tires do not have to steer or propel a vehicle, so drive traction is not a consideration; therefore, tread patterns are designed for low rolling resistance.

However, trailer tires do have to carry a lot of weight and endure outside storage and weathering for extended periods.

All-wheel-drive and 4×4 vehicles must have tires that all match.

For any given size, the higher the load range (or ply rating), the more weight the tire can carry.

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Therefore, a Euro- or P-metric tire rated to carry 2,000 pounds on a passenger car would be down rated to 1,820 pounds when fitted to a pickup or SUV for safety reasons.Tires on tow vehicles or trailers run the gamut from passenger-car types to truck and trailer rubber — and each has its own specific design, construction and job to do.Problems with tires have become one of the most frequent subjects of letters and emails from Trailer Life readers, so let’s learn how to get the most out of those expensive black-rubber doughnuts.ST tires utilize materials and construction needed to handle the higher loads trailers present.

ST rubber compounds typically incorporate more chemicals to resist UV rays and aging, and may also use harder rubber than drive wheel and steering tires.

Harder compounds wear longer but have less grip, and vice versa.



Each tire has a number of codes molded on the sidewall, including date of manufacture and country of manufacture. The U. S. Department of Transportation DOT tire identification number is a combination of up to 12 numbers and letters. The first two are manufacturing plant codes. Plant codes are listed online on the Tire.… continue reading »


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The chronological age of any tire can be found on the tire sidewall by examining the characters following the symbol "DOT". The last four numbers identify the date of manufacture of the tire to the nearest week. The first two of these four numbers identify the week of manufacture which range from "01" to "53". The last two.… continue reading »


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