Is it dangerous for the tire pressure to reach 1.7?

Danger. According to the provisions and requirements of international standard GBT2978-2008: standard tire: 2.4-2.5 bar.

Danger of low tire pressure:

1, the friction coefficient with the road surface will increase, and the fuel consumption will also increase.

2, the steering wheel is heavy, easy to run off and other factors that are not conducive to driving safety.

3. Increase the amount of exercise in all parts of the tire. Excessive rolling will cause abnormal heating of the tire.

4. The function of cord and rubber is reduced, which leads to cord breakage and delamination or excessive friction between rims, resulting in tire bead damage and abnormal wear.

5. The friction between the tire and the ground is multiplied, the tire temperature rises sharply, the tire becomes soft, and the strength drops sharply. When the vehicle is driving at high speed, it may lead to a flat tire.

6. If the tire pressure is too low, the carcass deformation will increase, cracks will easily appear on the sidewall, and buckling will occur at the same time, which will lead to tire overheating, rubber aging, tire cord fatigue and cord breakage, increase tire contact area and accelerate tire shoulder wear.

Extended data:

Other factors for tire pressure reference:

1, seasonal factor: winter: based on the standard air pressure of automobile tires, appropriately increase it by about 0.2bar, and summer: based on the lower limit of the standard air pressure of automobile tires. In summer, when the car is parked in the open air, the air pressure can generally be about 0. 1bar lower than the standard to avoid high temperature puncture.

2. Loading load:

No-load/Half-load: according to the lower limit of automobile tire pressure standard, and fully loaded: according to the upper limit of automobile tire pressure standard when fully loaded.

3, tire pressure measurement environment:

Hot tire: the tire pressure of cold tire and hot tire is different, so pay attention to it when measuring. The difference between the two is about 0.3bar. Cold tires: at least three hours after parking or the tires are not more than 2 kilometers. If the tire pressure can only be measured when the tire is hot, please subtract about 0.2bar from the measured tire pressure to obtain the tire cooling inflation pressure.

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