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What is the normal tire pressure value?

1 Answers

LukasFitz

07/29/25 5:34pm

The normal tire pressure value ranges from 2.4 to 2.5 bar. For reinforced tires, the required pressure is between 2.8 and 2.9 bar. The tire pressure for all vehicles should not exceed 3.5 bar. 1 bar is approximately equal to one atmospheric pressure, so car tires generally have a pressure of two to three atmospheres. Tire pressure is critical to the lifespan of a tire. Both excessively high and low pressure can shorten the tire's service life. Low pressure increases tire body deformation, leading to cracks on the tire side and causing flexing motion, which results in excessive heat generation, accelerating rubber aging, fatigue of the cord layers, and breakage of the cords. It also increases the tire's contact area, accelerating wear on the tire shoulders. High pressure causes excessive stretching and deformation of the tire cords, reducing the tire's elasticity and increasing the load on the vehicle during driving. In case of impact, it may lead to internal cracks or even bursts. Additionally, high pressure accelerates wear on the tire tread and reduces its resistance to punctures.

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