Semi truck tires - helping you know about your semi truck tires

Semi truck tires

Semi truck tires, semi trucks are usually set with 3 axles, the front axle having two wheels, and each of the two rear axles having a pair of "dual" wheels on each side. The most commonly set semi truck has 10 wheels. The cargo trailer usually has two axles at the rear, each of which have dual wheels, there are usually 8 wheels on the trailer.

Although dual wheels are most common for most semi truck tires, use of a single, wider tire on each axle is becoming popular, particularly among bulk cargo carriers and other freight operators.

There are many advantages of this configuration and they are: lighter weight allows for a truck to haul more weight of freight, and single wheels covers less of the brake unit, which lets the brakes cool easier and faster. However, there is one huge disadvantage, it is that the single tire cannot be driven on after a deflation or after it runs flat. It is not possible to drive the semi truck to a service location without risking damage to the rim, as it is with dual wheels.

The United States also allows 2-axle tractors to tow two 1-axle 28-foot semi-trailers known as a set, doubles or a set of joints. Some places also allow towing up to three 28-foot trailers known as road trains or triples. A 2-axle full-sized semi truck pulling a 28-foot trailer is also permitted in some regions.

Not a lot of states allow dual full-sized semi trailers. Reasons for limiting the legal trailer configurations include both safety concerns and the impracticality of designing and constructing roads that can handle the larger wheelbase of these vehicles and the larger minimum turning range associated with them. Remember to note all of this when purchasing semi truck tires.

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