What is the recommended tire pressure for 750 tires on a 4.2-meter truck?

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4.2-meter trucks generally use high-pressure tires with recommended inflation between 5-7 bar. For standard tires, the proper tire pressure should be maintained around 5 bar; while for steel-belted radial tires, the pressure should be slightly higher at approximately 6 bar. Below are relevant details about tire pressure: 1. Effects of overinflation: Increased tire rigidity reduces deformation and contact area, accelerating central tread wear and shortening tire lifespan; excessive hardness compromises ride comfort; puncture resistance decreases, making tires more susceptible to blowouts when encountering sharp objects. 2. Causes of overinflation: Excessive air inflation; inaccurate wheel alignment causing uneven wear and elevated temperature leading to pressure increase; excessive tire deflection resulting in abnormal wear patterns and temperature rise that increases pressure.