Determining the Tire Size that is Appropriate for Your Vehicle


by Daniel Akinson


The dimensions of your car's original equipment tires can be found in the owner's guide, on a sticker affixed to the inside of the driver's side door, inside the glove compartment, or on the interior of the gasoline hatch. The size of the tires that are presently on your vehicle, is represented by a series of numbers, followed by letters on the tire's sidewall. It is important to know how to read these numbers and letters on your tires.

It is wise to purchase the same size tire recommended by the car maker, or else you run the risk of buying tires that do not work on your vehicle. But, should you wish to adjust tire width, aspect ratio, wheel diameter or overall size, it is necessary to think about several factors prior to making a selection.

Whether your tire is narrow or wide represents your tire's width. Tires of greater width offer additional gripping power when roads are dry, but they will reduce fuel economy. Another thing to keep in mind is that tires that are too wide could end up rubbing on the body of your car and cause damage. You will get good winter traction from narrow tires, however narrow tires will decrease the safety of the vehicle. You must consistently maintain sufficient contact between the tires and the road in order to continue traveling forward.

The measurement that determines the height of the sidewall and eventually affects the tire's height is the aspect ratio. You will find that your vehicle will experience enhanced cornering with a low aspect ratio, but the disadvantage is a ride that is not as smooth.

Another thing you should know is that if you make too big of a change in the aspect ratio you might not know your actual speed because it can confuse the speedometer reading. By purchasing new wheels and utilizing the "Plus-One" arrangement, you can maintain precise speed monitoring and also get dependable cornering ability. That way, it will be possible to alter the size and width of your tires without sacrificing speedometer accuracy.

It is harder to alter wheel diameter. You need to know that 16-inch tires will always be needed for 16-inch wheels. New wheels offer the chance to alter your wheel diameter, particularly with the Plus-One option. Keep in mind: formulas do exist for installing Plus-Two, Plus-Three, etc.




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