Since the temperature is dropping more and more severely now, if the temperature drops suddenly tomorrow morning, the tire pressure of the tire will be found, and suddenly the alarm may be alarmed, so how can we quickly judge whether the tire pressure is in the normal range through the naked eye? A friend asked Brother Meow, on the Internet I saw the pattern of the tires through the number, that is, the contact surface between the tire teeth and the ground, is this method feasible, is it reliable? Today, Brother Meow will once again give you a verification to see if this method works in the end.

Now let's take a look at the tire pressure of these two tires at 2.1, 2.2, because the recommended tire pressure of Meow Brother's car is around 2.1. Let's count the number of tyres that their patterns are in contact with the ground, and now park the car on a flat, hard, concrete road.
I now count, my front wheel and the rear wheel, they are in contact with the ground tire pressure, now what you see is the front wheel and the ground contact is 5 teeth, that is, 5 tire pressure, and then look at the rear wheel, we see that it is also 5 looks, to the 6th here has no contact, just next to a little bit. This is under the standard of 2.1, 2.2, basically the contact of 5 teeth.
Now Brother Meow will deflate the tire again, simulating the state of our tire lack of air, put the rear tire, from the current 2.2 to it to 1.4, it is already alarming, constantly flashing. Let's take a look at the tire pressure and the contact with the ground, and now its contact surface is two larger, one more tooth on one side, and 7 tooth contact surfaces.
Of course, the tire pressure of 1.4 is indeed relatively low, if you feel better, sometimes the road surface is slightly uneven, in fact, sometimes the tire pressure of 1.4 can have a slight perception. Then we will now put the front wheel on our alarm tire pressure, that is, 1.9 below 1.8, to see if its contact surface can be visually seen to see obvious changes.
Brother Meow now put my front tire pressure, I am now pressing my front tire, has been put to 1.8, basically to the tire pressure, just like my low tire pressure value of the tire, it will also tire pressure began to alarm. We now look at the change of its contact surface, the contact between the teeth on both sides and the ground, it does not achieve full contact, it is a little slight gap, that is, the current tire pressure state of 1.8, to 1.4 is full contact.
Through the experiment just now, we have also seen that if our tire pressure changes significantly, by counting the tire teeth of the tire, the number of contact with the ground, we can roughly judge whether our tire pressure is in a normal state, but you do not remember the data, because each car has different models of tires, the pattern of its tire teeth, the width and size are not the same, so it is different from the contact area of the ground.
If the width of your car tire's tire teeth is very wide, then it may be that under your normal tire pressure, it may only have 3 to 4 teeth in contact with the ground, but if your tire pattern, especially fine, each piece of rubber is very fine. Then under normal tire pressure, your tires may reach 6 7 teeth, or even 8 teeth, in contact with the ground. Therefore, the method of counting a few teeth mentioned on the Internet is feasible.
It's just that you can't blindly remember this data, but according to the actual situation of your car, you want to judge whether your tire tire pressure is in the normal range through this method of the naked eye. Then you can put your tire tire pressure to reach the normal recommended value, such as Meow Brother's 2.1 on the B pillar, then reach 2.1.
If you post a 2.3, you reach 2.3, and then you park your car on a flat, hard cement road like this, and then count the number of teeth in contact with the ground, and then remember the data. Although this method cannot be as accurate as the tire pressure gauge, but for our daily driving, to meet our basic tire safety, this method is still feasible and available, but we must because of the tire conditions of the car, do not blindly move other people's data.