#Model 3 roof rack weight manual

Now letвЂ™s assume the roof is loaded with 70kg of added weight, and that weвЂ™re driving at 80km/h over corrugations in the road surface that are 1m apart. LetвЂ™s take a manufacturers roof load limit of 70kg. In other words, the steel frame is incredibly strong. The maths below demonstrates how the steel frame of an average vehicle will regularly have to withstand a force of around 700kgs just from driving over an uneven road surface. The respective weights of our TentBox models: In light of the above, you need to ensure that your roof load limit is higher than the weight of the TentBox model youвЂ™d like to go for. WeвЂ™ve done the maths below, if you want to delve that deep! What TentBox can your vehicle take? In fact, it most vehicles can take upwards of 500kgs. In other words, when your vehicle is stationary, the steel frame can easily take the weight of a TentBox, as well as two or even three adults. Vehicle frames are designed to withstand a force large enough to protect you in a crash, and to take the force of driving over bumps in the road, and changes in road gradient, when you hit them at speed. However, when your vehicle is stationary, only a downward force is being exerted directly into the steel frame. The reason for the difference is that when moving, your vehicle is turning, accelerating and braking, which all exert lateral forces on the top of your vehicle, and can make it unstable, when driving. A vehicle can actually take much larger static loads than it can dynamic loads.

Static LoadsДЄ dynamic load refers to the maximum weight allowed whilst your vehicle is moving, and the static load is when your vehicle is stationary.

#Model 3 roof rack weight manual

Secondly, the maximum roof load limit shown in your vehicle/roof bar manual refers to dynamic loads, as opposed to static loads.

The TentBox does not at any point sit on the actual roof of your car. Important PointsДЇirstly, it is important to remember that a TentBox sits on the cross bars, which are fixed to the steel frame of your vehicle. Trust us, weвЂ™ve done the engineering, and we know it works. A common question people ask, is what affect the added weight of people inside a TentBox has on a vehicle roof load limit, and how a TentBox can work with this added weight.