What does tire bar mean?

[LaGarrett]

The 'bar' displayed during car tire pressure monitoring refers to the unit of pressure measurement, megapascal, which represents atmospheric pressure, commonly referred to as air pressure. Below are the appropriate car tire pressures according to the international GBT2978-2008 standard requirements: 1. Standard tire pressure: 2.4-2.5 bar; 2. Reinforced tire pressure: 2.8-2.9 bar; 3. Maximum tire pressure: should not exceed 3.5 bar. Here are some precautions: 1. Air pressure is critical to tire life; both too high and too low will shorten the tire's lifespan. Low pressure increases tire body deformation, leading to cracks on the sidewalls, flexing movements, excessive heat generation, rubber aging, fatigue in the cord layers, and cord breakage. It also increases the tire's contact area, accelerating shoulder wear. 2. High pressure causes excessive stretching and deformation of tire cords, reducing the tire body's elasticity. This increases the load on the car while driving, potentially causing internal cracks and blowouts upon impact. Additionally, high pressure accelerates tread wear and reduces puncture resistance.