A lot of people have wondered how Cooper tires are capable of supporting the weight of a vehicle when they are made predominantly of rubber filled with pressurized air. A tire depends on several important factors that decide what it is capable and how well it will perform, so understanding exactly how it all works is only possible through extensive explanations. On the other hand, you don't have to be an automotive engineer to grasp the basics of how it all comes together, so we will simply stick to the basics instead of getting too scientific.
To start with, let's not allow ourselves to get confused by the fact that a tire is made out of rubber, because the rubber only serves to give form to the real important component: the air. The amount of air inside a tire is determined in PSI, or pounds per square inch, which indicates the amount of force exerted onto each square inch of a container's outer walls.
When talking about a tire, the walls in question are formed of the rubber and wire that is the tire's surface. A common pressure specified for a tire is thirty to forty pounds per square inch, which means that every square inch of rubber you see on a tire has thirty to forty pounds pushing against it.
By knowing the PSI of a tire, you know the amount of weight that can be supported by a certain area of that tire's surface. When you think that a tire is inflated to thirty-five PSI, you then know that four tires, each with one square foot of surface touching the ground, can carry a combined total of over sixteen hundred pounds. The weight of a larger vehicle is easily accommodated with the use of more appropriately sized tires that have more surface area on the ground and a higher PSI in each tire.
You might assume that a big tire with low PSI or a small tire with high PSI could support an identical amount of weight, but that ignores a particular balance that we must adhere to. Overinflated tires can lead to terrible handling problems due to the limited amount of tire surface that is actually on the ground, and the higher pressure makes it easier for the tire to rupture. Underinflated tires wear out fairly quickly thanks to the extra force necessary to roll a tire with too much surface on the ground and the amount of heat it causes, not to mention the car will be all over the road. So thanks to a nice balance between rubber surface and pressurized air, Cooper tires are able to support the weight of a vehicle.
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You may never know the full details of this, but you can try to learn even more by going to Mini Cooper Tires or DiscountTireDirect.Com.
http://www.discounttiredirect.com/direct/tires/cooper/home.do
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