An unbraked trailer is a trailer that does not have its own independent braking system. Instead, it relies entirely on the towing vehicle’s brakes to slow down and stop both the car and the trailer. These are typically smaller trailers, often under 750 kg (about 1,650 lbs), and are commonly used for light-duty hauling.
Because unbraked trailers rely completely on your vehicle, your towing habits, setup, and awareness matter even more than they would with a braked trailer.
Mistake #1: Exceeding the Towing Capacity
Why It’s Dangerous
One of the most common—and dangerous—mistakes people make is towing more than their vehicle is rated for. This is especially true with an unbraked trailer, since the added weight can put extreme strain on your towing vehicle’s brakes, engine, and suspension.
Overloading the trailer or towing a trailer that’s too heavy can lead to:
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Increased stopping distances
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Loss of vehicle control
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Brake overheating
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Accelerated wear and tear
How to Avoid It
Always check the manufacturer’s recommended towing capacity in your vehicle owner’s manual. Look specifically for the maximum unbraked trailer weight limit—not just the total towing capacity.
Also, don’t forget to factor in the weight of the trailer plus the cargo. For example, if your trailer weighs 400 lbs and you’re adding a 900 lb load, your total is 1,300 lbs. That could easily exceed the unbraked trailer limit for some smaller SUVs or sedans.
Mistake #2: Poor Weight Distribution
Why It’s Dangerous
Improperly loading your trailer is a recipe for disaster. If too much weight is placed at the back or unevenly distributed side-to-side, it can cause the trailer to sway, fishtail, or even tip over.
Unbraked trailers don’t have their own braking system to help control this instability, making it easier to lose control at high speeds or during sudden stops.
How to Avoid It
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Follow the 60/40 rule: Load 60% of the weight toward the front half of the trailer.
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Keep heavier items low and centered between the wheels.
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Tie everything down to prevent shifting while driving.
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Use a weight-distribution hitch if you’re nearing your vehicle’s towing limit.
When in doubt, test the trailer at low speeds before hitting the highway.
Mistake #3: Not Checking the Hitch and Coupler
Why It’s Dangerous
Many people overlook the hitch and coupler once the trailer is attached. If these aren’t properly secured, the trailer could detach from the towing vehicle during transit—an extremely hazardous situation that could lead to major accidents.
This is even more important with an unbraked trailer to a towing vehicle, since there’s no backup braking system to reduce speed in case of separation.
How to Avoid It
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Ensure the hitch ball size matches the trailer coupler.
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Secure the locking mechanism and use a safety pin or locking clip.
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Always attach the safety chains in a crisscross (X) pattern beneath the hitch—this helps catch the trailer tongue if it disconnects.
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Check all connections before each trip—even short ones.
And remember, just because it “looks good” doesn’t mean it’s safe. Give the trailer a little tug before driving off to confirm it’s properly latched.
Mistake #4: Forgetting to Adjust Driving Habits
Why It’s Dangerous
Towing an unbraked trailer changes the way your vehicle handles. Braking distances are longer, acceleration is slower, and turning requires more space. Some drivers forget to adjust their habits, leading to mistakes like:
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Tailgating
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Taking corners too fast
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Ignoring reduced speed limits for towing
All of these can result in jackknifing, trailer sway, or loss of control.
How to Avoid It
Drive like you’re hauling precious cargo—because you are.
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Increase your following distance by at least 4-5 seconds.
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Slow down before turns and curves.
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Avoid sudden braking or acceleration.
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Use your vehicle’s tow/haul mode if it has one.
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Stay in the right lane on highways and let faster traffic pass safely.
You’ll also want to be more aware of windy conditions, which can impact lightweight unbraked trailers much more than heavier, braked ones.
Mistake #5: Ignoring Local Laws and Regulations
Why It’s Dangerous
Laws about towing unbraked trailers vary from state to state—and even country to country. Some places limit the maximum weight of unbraked trailers to 500 kg, while others allow up to 750 kg or more. Not knowing the rules can lead to hefty fines or worse, invalidate your insurance in the event of an accident.
How to Avoid It
Before you hitch up and go, research local towing regulations:
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Check your DMV or Department of Transport website.
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Know the maximum unbraked trailer weight allowed in your area.
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Understand the requirements for lighting, reflectors, and safety chains.
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Be aware of speed limits for towing, which are often lower than normal.
If you’re traveling across state lines, make sure you meet the most restrictive requirements of any state you’ll pass through.
Bonus Tips for Safe Towing
In addition to avoiding the top five mistakes, keep these extra tips in mind for a safer trip:
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Inspect tires on both the trailer and towing vehicle. Bald tires increase the risk of blowouts and poor braking.
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Use extended mirrors if your trailer is wider than your vehicle.
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Practice backing up in an empty parking lot before your trip.
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Avoid overloading the rear of your vehicle, which can reduce traction and cause sagging.
Final Thoughts
Towing an unbraked trailer to a towing vehicle may seem simple, but it carries more risk than many realize. From exceeding towing capacity to careless loading and poor driving habits, the margin for error is thin, and the consequences can be severe.
The good news? Every mistake listed here is 100% avoidable. By planning ahead, staying informed, and towing with care, you can enjoy a smooth and stress-free experience—whether you’re heading to the lake, the worksite, or your next family camping adventure.
FAQs
1. What is the difference between a braked and unbraked trailer?
A braked trailer has its own independent braking system, while an unbraked trailer relies entirely on the towing vehicle’s brakes. Braked trailers are safer for heavier loads, whereas unbraked trailers are typically limited to lighter loads (usually under 750 kg or ~1,650 lbs).
2. Is it illegal to tow an unbraked trailer in the U.S.?
Towing an unbraked trailer is legal in many U.S. states, but there are strict weight limits and safety requirements. Always check your state’s regulations. Most states allow towing unbraked trailers under 3,000 lbs, but this varies.
3. How fast can I go while towing an unbraked trailer?
Speed limits for towing vary, but it’s generally safer to stay under 55–60 mph. Always follow local laws and reduce speed in windy or wet conditions to maintain control.
Ready to tow with confidence? Avoid these mistakes, follow best practices, and you’ll be well on your way to a safer and smoother towing experience—even with an unbraked trailer.
