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How many kilograms can a car roof bear?

2 Answers

LoganFitz

08/31/25 2:24am

Generally, the pressure a car roof can bear is 1.5 times the weight of the car. The following is a detailed introduction to the damage caused by overloading: Reduced braking performance: Increases the non-safe zone distance. There are many factors that affect the braking distance of a car, among which the change in car load will directly affect the length of the braking distance. Overloaded cars have greater inertia and longer braking distances. The extension of the non-safe zone distance can easily lead to traffic accidents. Shortens the lifespan of spring steel plates: Reduces the vehicle's passing ability. Due to overloading, the spring steel plates are subjected to excessive force, and continuous bouncing during driving shortens the lifespan of the springs. Moreover, due to the excessive load, the vehicle sinks overall, reducing the distance from the ground and diminishing the car's passing ability. Accelerates tire wear and deformation: Overloading causes the tires to deform under heavy weight, while also increasing friction, which shortens the lifespan of the tires.

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LaKeegan

09/12/25 5:57am

How much weight can a car roof bear is a question I'm quite concerned about. Generally, the roof of a regular sedan can support around 50 kilograms, while an SUV might handle 75 to 100 kilograms, depending on the model and manufacturer's design. Exceeding the limit when placing heavy items is not advisable. I once saw a neighbor overload their roof with camping gear, likely over 80 kilograms, which caused the roof to dent and deform—costly and troublesome to fix. Safety first; it's best to check the vehicle manual or consult a 4S store for specific data. Also, distribute the weight evenly to avoid concentrated pressure that could damage the structure. High winds and uneven weight distribution can increase swaying and affect handling. I usually keep it under 50 kilograms to ensure a smooth and safe journey. Weighing items before a trip gives me peace of mind. Remember, older models may have lower weight limits, so don't risk overloading.

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