SUV Tyres Vs Normal Tyres: How Are They Distinct From Each Other?

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SUV tyres and normal tyres both are distinguishing, and the difference is due to the nature of cars. It depends on the type of cars and their uses. So it is essential to know the use and capacity of your vehicles.

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There are two basic differences between passenger cars and SUVs.

#1 Design – SUVs are constructed essentially the same way as normal cars, except that they are generally bulky, and front or all-wheel drive.

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#2 Design intent– Passenger cars are designed to carry passengers over paved roads whereas SUVs are designed to traverse a variety of different terrains to transport passengers or cargo. These differences are reflected as much in their respective tire types as they are in other aspects of vehicle design.

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SUV vs Normal Tyres: Basic Differences

Generally, SUV tyres are of a larger and heavier construction than normal car tyres, with a knobbier tread pattern better suited to occasional off-roading than a normal car’s. Car tyres are usually engineered to provide a comfortable ride over paved surfaces, and the tread pattern is specifically geared to syphon water away from the tire-to-road contact patches at speed.

The following are some aspects that distinguish both the tyres in a more specific way.

Rubber Compounds

As a vehicle’s weight increases, it requires a harder rubber compound to withstand increased frictional wear. For instance, a 2000 lb. race car uses incredibly sticky rubber to grip the road for cornering. A tractor-trailer uses concrete-hard rubber for long life, and the heaviest vehicles (trains) have metal wheels. There is a trade-off with using harder rubber compounds. Since rubber depends on a certain amount of elasticity to grip the road, a harder compound gives less cornering grip and braking than a softer one.

Sidewall Construction

An SUV usually has taller sidewalls which would flex a great deal more under cornering if all else were equal. To combat the effects of sidewall flex under the SUV’s greater weight, tire engineers use thicker rubber in the tire sidewalls. Though thicker sidewalls would in and of themselves make for a harsher ride. The increased height of an SUV tire allows it to flex more under load, negating this effect.

Tread Patterns

A passenger car’s tyres will usually have lateral grooves that are more swept-back than those of SUV tyres. This allows more rubber to contact the road at any given point, increasing the tyre’s dry-road grip. SUV tires generally have more squared-off tread blocks to increase the pound-per-square-inch force where the tire contacts the ground. This allows SUV tires to dig into rough terrain for grip, as opposed to skating over the top.

Speed Rating

SUV tyres will generally have a lower speed rating than their passenger car counterparts. This is due largely to the tyre’s knobby tread, which is less capable of dissipating the sustained heat of high speed.

 


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