Car tires are actually particularly important, tires on the car is as important as shoes on people, not suitable shoes are not only uncomfortable, over time will also affect the health of people. Tires and wheels are not the bigger the better, the car is a set of sophisticated systems, the design and production of the car have a set of professional processes, and not what type of tires can be loaded on their cars.
Unsuitable tires, not only will cause fuel consumption and comfort deterioration, but also cause damage to the suspension system, change the braking distance and other harmful effects, so it is very important to learn to pick the right tires.
To choose the right tires, the first step is to just know what the numbers and letters on the tires represent. No matter what brand on the market, there will generally be "225/55 R17" the three sets of data, of which "225" represents the width of the tire tread, the unit is mm (MM). General common tire width between 145-285mm, the general difference between the different widths of 10mm. many car owners feel that the wider tires not only look domineering, but also increase the vehicle's grip, so generally like to compare the wider tires.
Although in fact, wider tires can indeed increase the stability of the body and grip, can enhance the good driving feeling. But too wide tires, may be beyond the body and suspension of the tolerance range, in the turn may cut the inner fender, increase the load of the suspension system. So the width of the tires should be selected according to the vehicle's design manual within the appropriate range.
The two digits "55" in the middle of the number "225/55 R17" represent the flat ratio of the tire in %. The aspect ratio can be interpreted as the thickness of the tire. Generally speaking, the thicker the wall of the tire looks, the larger the aspect ratio, and the thinner the wall, the smaller the aspect ratio. Generally the flat ratio of tires is between 30% and 80%, many car owners like to have larger wheels with thinner tires, not only for good looks, but also to improve the vehicle's road feel, handling, and grip, and also to reduce fuel consumption. It is generally more common on performance cars, sports cars and tuned cars.
However, I do not recommend that you choose a small flat ratio tires in order to improve performance and aesthetics, because although these tires can improve the performance of a good, but at the same time in the improvement of road feel, comfort is also reduced, the vehicle will reduce the smoothness of the uneven road driving. In the domestic road conditions, not very suitable for long time use of this tire, because it is not wear-resistant, the road has speed bumps or gravel and other foreign objects, easy to wear or even flat tire. Still according to the actual use of the vehicle environment and use, choose the right tire.
The last "R17", R is the abbreviation of English Radial, indicating that the tire is radial ply structure, also called radial tires. Now the common tires on the market are radial tires, there is also a bias tires are generally not used in domestic passenger cars, basically used in off-road vehicles, heavy trucks.
The number "17" after R indicates the outside diameter of the wheel in inches. This can be interpreted as the size of the tire, just like a shoe size. For example, an R19 tire fits a 19-inch wheel. Wheel and tire size is not the bigger the better, generally not higher than 20 inches, because the domestic road conditions are really not suitable for this kind of large size wheel, small flat ratio tires with.
Finally, I hope that all of you can follow the car's factory specifications and manuals, within the specified parameters to choose the right tires. Always check your tires for serious wear, bulging, and aging, and replace them in a timely manner. Safe driving, a smooth journey!