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When Do Brakes Need to be Added to Both Axles of Tandem Axle Trailer


At what GVWR do I need to get a tandem trailer with brakes on both axles? I was thinking 5000 pounds would be in the ballpark. Thanks,


Helpful Expert Reply:

There really isn't a particular maximum trailer weight that is used to determine when brakes need to be added to both axles of a tandem axle setup. While I do still recommend checking your local laws, I am also not aware of any general laws that indicate when brakes need to be put on all axles of a multi axle trailer (only laws that state when a trailer needs to be equipped with them).

With all of this in mind, we always recommend adding brakes to both axles of a tandem axle trailer. This is simply because it's going to provide you with much better stopping power and will also keep the one set from wearing down quicker.

When viewed just in terms of capacity, if for example you have two 3,500 pound axles on your trailer that can weigh as much as 5,000 pounds loaded, you can't expect just one pair of brakes (which would be rated at 3,500 pounds to match the axle) to fully stop the fully loaded trailer. Brake assemblies would need to be added to the second axle just to give you the needed combined capacity.

When just one axle of a tandem axle trailer is equipped with brakes your tow vehicle is going to be doing a lot of the work when applying the brakes. This is going to have a negative affect on your truck as well.

I have included a link that will take you directly to our complete selection of electric trailer brakes that you can look through if needed.

helpful expert reply by:
Chris R

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