Is There a Speed Limit With a Roof Box W

Is There a Speed Limit With a Roof Box?

Roof box affords travelers the ability to pack more than their vehicle alone can carry through the ease and security of rooftop equipment. However, roof boxes are an addition to the vehicle, making travelers wary of their speed. Is there a speed limit when traveling with a roof box? 

There is no set speed limit when traveling with a roof box, but it is recommended to never exceed 90 miles per hour. With higher speeds comes a bigger change in a vehicle’s road holdings, which can be compromised when your car reaches top speeds with additional cargo on top. 

Roof boxes offer a sleek, secure, and weather-proof way of transporting items to and from your destination. This type of storage system allows for additional storage, or works as a primary space for storing items to keep other compartments of your vehicle free to allow for more space inside. Take a look below to find if there truly is a speed limit for driving with a roof box and what you can do to ensure the safety of a roof box when traveling. 

Is There a Speed Limit With a Roof Box? 

Roof boxes are designed to be able to make traveling with extra cargo convenient, safe, and as efficient as possible when traveling at high speeds. This makes carrying or redistributing items rather easy, but it can leave drivers a tad anxious when it comes to figuring out how fast is too fast when it comes to driving speeds. Therefore, when traveling with a roof rack, is there a speed limit that you should adhere to to keep yourself and other travelers safe? 

There is no set speed limit when traveling with a roof box, but it is advised to keep speeds under 90 miles per hour. If you exceed this speed, you have a greater risk of your vehicle’s road holdings changing, which could mean instability in the vehicle, presenting potential safety issues. 

When traveling at top speeds without any additional equipment at the top of your vehicle, the vehicle’s road holdings are better able to accommodate the force that comes from the wind your vehicle takes head-on. However, when you have additional items at the top of your vehicle, drag is created when this force is presented, which can cause your car to waffle and lose its bearings when pushed at speeds too high which is why it is suggested to stay under 90 miles per hour. 

It would be rare to find an area that allows for such high speeds, but if you do find yourself in a position that you are pushing 90 miles per hour with a roof box above your vehicle, pay incredibly close attention to how your vehicle is handling. If you notice that the drag on your car is becoming more and more noticeable, that your steering wheel is starting to shake intermittently, or that you have to work harder to keep your car aligned with the road, decrease your speed to prevent any accidents from occurring. 

A roof box should be secured onto a roof rack, which makes this type of box incredibly sturdy and safe when traveling at higher speeds, but the more you increase those speeds, the greater your chances are of the rack loosening. Not only is adhering to the appropriate speed limit necessary to preserve the integrity of installation for your roof rack or to keep your vehicle safe, but it is essential is keeping other drivers around you safe as well. 

How to Ensure the Safety of a Roof Box  

Keeping your speed under 90 miles an hour is one of the first ways to keep your rooftop tent secure, your vehicle safe, and those around you protected as well. Adhering to this advice is one way among a few others to travel as safely and efficiently as possible with a roof box. If you plan to travel with a roof box soon, take a look below to find out the different ways you can ensure that such a piece of equipment stays put and travels well no matter what. 

Keep Tire Pressure Maintained 

When carrying any extra weight on your vehicle, the fuel efficiency is going to be affected and you are going to encounter more wind resistance due to the overall structure of your vehicle is temporarily changed. However, this can all be somewhat countered by keeping your tires aired up to the recommended inflation pressure number. This number can be found in the owner’s manual and be sure to check the pressure before and during all trips. 

Anchor the Roof Box Down Properly 

When carrying a lighter load, it may be tempting to simply attach the roof box to the roof rack and head on your way. Although this may save you a little time as far as preparation goes, save yourself potential problems by always securing the roof box down with the added hooks and straps. These work as an additional layer to keep the box down when going at higher speeds, encountering strong winds, or barreling through inclement weather. 

Be Aware of the Roof Boxes Height 

One issue that many travelers don’t consider is the height of their roof box. Especially if you are traveling in a vehicle that is particularly tall, the height of your roof box can be a major issue when traveling under areas that are low. Know how much height the box adds to your vehicle and then be sure to keep this into account when in those areas of low heights. Slow down before entering and be mindful of any sounds that indicate contact with the roof box. 

Travel With Securing Tools 

When installing a roof box, it will come with the hardware you need in order to secure the item well. Over time though and with heavy use, the hardware securing the roof box can become rattled and loosened. When this happens, you are going to need the right tools to rescue the roof box so that you can continue traveling safely. To avoid having to make any additional stops or traveling with an unstable roof box, have the tools on hand needed to re-secure the item.

Don’t Overpack the Roof Box 

Roof boxes are intended to carry relatively heavy loads, which can leave some owners included to pack the box as fully as possible to save room in their vehicle or make as few trips as possible transporting items. However, if you stuff a box so completely full that you notice the sides are straining and the zipper is pulling a significant amount, this could be a recipe for the box popping open unexpectedly. Avoid overpacking to prevent this from happening.  

Pack Only What You Don’t Need in the Roof Box 

Roof boxes are designed to carry items long or short distances by acting as a secondary storage system to your vehicle’s trunk. However, a roof box should not be used as an item that needs to be accessed often, as this will not only cause you to have to stop more often than needed, but will put use on your roof box that is unnecessary, causing unneeded wear. Any items you need often should be stored inside the vehicle for easy access. 

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