Many of our baby maids feel dissatisfied with their tires after buying the car, and want to change the tire, such as changing a wider tire, to say that it can improve the performance of the car.
A series of numbers are marked on the side of our tires, such as 185 / 60R14. The first number 185 refers to the width of the tire surface is 185mm, 60 is called the flat ratio, which represents the height of the tire surface is 60% of the tire width R represents a radial tire, and 14 represents a hub diameter of 14 inches (1 inch = 2.53 cm).
We only look at this tire width is this 185mm, this is the width of a small car tire.
Generally speaking, the tire width of a mini car is 125mm ~ 155mm, a small car is between 155mm ~ 195mm, a compact car is between 195mm ~ 225mm, and other cars, according to the difference of 30mm and so on.
So what are the advantages of wide tires? Auto wheel fair believes that: the tread is wider, the more contact with the ground, the grip will become stronger, the lateral force will be better, the control can become more stable, turn a sharp curve And the braking effect will be very good.
However, the shortcomings of wide tires are also obvious. As they come into contact with the ground, the natural friction resistance will also increase. When our car accelerates and accelerates, it will slow down, and the steering wheel will also become heavier. With the natural consumption Up, in addition, tire tire noise heard at high speed will be much larger than narrow tires.
In contrast, narrow tires are just the opposite. For example, acceleration is faster and lighter, fuel consumption is lower, and tire noise is also smaller.
But the area where the tire touches the ground is reduced, the grip is not so strong, you need to slow down appropriately when making a sharp turn, the sound sounds more comfortable at high speeds, and the brakes are not as good as wide tires.
Then some of our friends bought the car and felt dissatisfied and wanted to change the tire, or the life of the tire is almost the same. If you want to change the tires collectively, what are the points to pay attention to?
First of all, if we buy an economical low-performance car, if we widen the tires, the grip will increase and the resistance will increase. It is very likely that our car will not be able to reach the power because the tires are wide. Can't run.
In addition, if the grip is strong, it will be easier to roll over the car after some sharp corners. If the tire is completely engaged with the ground, the outside tire is like the pivot of the lever. The centrifugal force of the car ’s roll will make the inside When the wheels are off the ground, if the speed is high and the amplitude is large, they will roll over. Conversely, if the tire grip is not so strong, it will slip and run out, at least not overturning. So it's not that the wider the tire, the safer it is.
In addition, we must also consider the tires of the car. If the original tire is a light truck tire, although it is relatively narrow, the bearing capacity is very strong. If you switch to a passenger car tire, the bearing capacity is not so strong, which may be more troublesome. Already. For example, we have some vans that use light truck tires. It is usually okay to order food or move goods. If you change the passenger car tires of our car, the tread is wide. But the bearing capacity is much worse. Maybe you are driving it open, and the tire can't bear it.
The auto parts exhibition believes that if your car is a high-performance car, install a tire with a wide tread and strong grip. Although the performance seems to have improved a lot, the 100-meter acceleration is faster, and the brakes are braked. The effect is also great. But at this time, the car is like an athlete taking stimulants. When it improves the performance of the car, it squeezes the performance of the car's frame, suspension, and padding. During high-speed operation and sharp turns, other parts are allowed. Under greater pressure, these parts will be damaged.
So, you see, it seems that the tyre has become wider, but there are many advantages, but the disadvantages and disadvantages are also obvious. But is it really impossible to widen the tires? Of course not, otherwise, so many people would not be wrong if they changed the tires, but there must be a degree of change.