What are the advantages and disadvantages of thin tires with big wheels and thick tires with small wheels? How should the owner choose?

What are the advantages and disadvantages of thin tires with big wheels and thick tires with small wheels? How should the owner choose?

As we all know, automobile wheels are composed of two parts, namely wheels and tires. Different car types use different tire sizes. For example, SUV models have thicker side walls and bigger wheels, while sports cars and performance cars have thinner side walls and bigger wheels. Generally, the wheels of family cars will be very small and the sidewalls will be very thick. Usually, the side of the tire will be marked with tyre size. For example, the words 19565R 15, E95 indicate that the width of the tire is 195mm, and 65 is the flattening ratio, which is the percentage obtained by dividing the cross-sectional height of the tire by the width of the tire. In short, it is the height-width ratio. The greater the value, the thicker the tire, and R 15 means that the rim diameter is 15 inch.

Any change in these three data will change the performance of the whole tire and even the use of the tire. When changing tires for their cars, many car owners always like to change them into extra-large or extra-wide tires, thinking that this will not only improve the grip, but also improve the overall value of the vehicle and be more domineering. First of all, talk about changing a wider tire. The wider the tread, the stronger the grip and the greater the resistance.

Some family cars look good after being fitted with wide tires, but they will find that the cars have become fleshy. Moreover, the fuel consumption increased significantly after replacement, which is a side effect caused by wide tires. If you want to change the thickness of the tire, the most common means is to use a thick tire with a smaller hub or a thin tire with a larger hub. For sports cars, thinner tires and bigger wheels are the best choice, because thin tires can avoid excessive bounce caused by tires. By giving the bounce directly to the suspension, the big wheel hub can output power more directly, improve the acceleration performance, avoid the insufficient grip caused by excessive bounce, and reduce the roll when cornering.

In addition, the big wheel hub will be safer after the puncture, because the change of the outside diameter of the wheel is smaller after the puncture, which will cause the change of the driving direction of the car to be smaller. In addition, the big wheels will make the car look more beautiful. The biggest disadvantage of thin tires may be that the buffer will become smaller, the car will be bumpy and uncomfortable when driving on potholes, and the back of the tires may not be all bad. The rear of the tire can filter out some bumps on the road and make the car more comfortable.

In addition, the price of a small hub will be relatively cheaper. For the same vehicle type, the outside diameter of the whole tire is not allowed to change greatly, otherwise the speedometer will be inaccurate and the annual inspection will fail. If the size of the wheel hub is to be increased, the flat rate of the tire should be reduced accordingly. For example, the original factory is equipped with 16 inch wheels, and the tire size is 25550R 16. If you want to upgrade to 17 inch wheel hub, the tire should be replaced with 25545R 17, and the flat rate should be changed from 50% to 40%. After all, changing the size of the wheel hub is only a factor in the annual inspection of a few car owners. Most car owners only change tires regularly, and choose tires without changing tire models, which can be purchased according to their living habits and hobbies. Quiet, fuel-efficient, comfortable, etc. It may be the reference for us to buy tires.