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If you’ve ever driven behind a vehicle hauling a trailer and wondered, “Are they even allowed to go that fast?”—you’re not alone. Towing a trailer changes everything, from how your vehicle handles to the speed limits you're legally allowed to follow. Whether you're towing a camper for a weekend getaway or hauling heavy tools for work, knowing the rules isn’t just about avoiding a ticket—it’s about keeping you and everyone around you safe.
In this guide, we’ll break down the legal speed limits for towing a trailer on the motorway in the U.S., cover safety tips, answer common questions, and help you feel confident every time you hitch up and head out.
Let’s start with the basics. When you're towing a trailer, you're dealing with extra weight, a longer stopping distance, and sometimes reduced visibility. Driving the same way you would without a trailer can be dangerous—and, in many cases, illegal.
Speed limits for a car towing a trailer on a motorway exist for good reason:
More weight = longer stopping distance
Trailer sway risk increases with speed
Turning and lane changes are slower
Tires and brakes can overheat
That’s why federal and state laws put a limit on how fast you can drive when towing. It’s not about slowing you down unnecessarily; it’s about making sure you’re in control at all times.
In the United States, speed limits for towing a trailer vary depending on the state you're driving in. Unlike many traffic rules that are standardized nationwide, speed limits for towing fall under state jurisdiction. That means it’s your responsibility to know the laws of the state(s) you’re driving through.
However, most states fall into one of the following categories:
Some states set lower speed limits for vehicles towing trailers, often around 55 mph. For example:
California: 55 mph maximum for vehicles towing trailers on highways and freeways.
Oregon: Also limits towing vehicles to 55 mph.
New Jersey: 55 mph when towing, unless otherwise posted.
If you’re in one of these states, exceeding that limit—even if the regular speed limit is 70 or 75—could result in a hefty fine.
In other states, vehicles towing trailers can legally follow the same speed limit as everyone else, provided it’s safe to do so. Examples include:
Texas
Florida
Nevada
Just because the law allows you to go 70 or even 80 mph while towing doesn’t mean it’s safe. Always adjust your speed based on your load, road conditions, and weather.
When you're planning a trip with a car towing a trailer on a motorway, it's a good idea to:
Check state DMV websites before your journey.
Use apps like TruckMap or RV LIFE to get real-time guidance.
Look for road signs—some states post specific towing speed limits right on the highway.
Even if you’re in a state that doesn’t set a special speed limit for trailers, speeding while towing isn’t a good idea. Here's why:
Your braking system isn’t designed for double the weight. If you're cruising at 75 mph and something suddenly happens ahead, you won’t stop as fast as you expect.
Engines, brakes, and tires work harder when towing. Driving fast only adds strain, increasing the risk of overheating, tire blowouts, and wear.
Going too fast makes your trailer more likely to sway, especially in windy conditions or when a big rig flies by. It only takes one strong gust to throw you off course.
If you're towing on a motorway and want to keep things safe (and legal), here's a general guide:
55–60 mph: Safest and most common speed range for towing.
65 mph: Acceptable in some states with lighter loads and good conditions.
70+ mph: Only when legally permitted, and only with premium equipment and load balance.
When in doubt, slow it down. A few extra minutes on the road beats dealing with a trailer accident.
Getting your speed right is just one piece of the towing puzzle. Here are a few other tips to help you stay safe on the highway:
Make sure your load is balanced with about 60% of the weight toward the front of the trailer. Uneven loads can lead to sway and reduced braking power.
Before you even hit the road, double-check your trailer connection, safety chains, and brake lights. Faulty connections are a leading cause of trailer-related accidents.
Wide-angle or extended mirrors help you keep an eye on your trailer and blind spots. It’s easy to miss a car lurking beside you if your trailer is blocking your view.
Gradual steering, braking, and accelerating are key to maintaining control. Sudden changes can make your trailer fishtail, especially at higher speeds.
Towing takes more mental and physical effort than regular driving. Stop every couple of hours to stretch, inspect your trailer, and check the tires.
Speeding while towing can lead to more than just a speeding ticket. Depending on the state, you might face:
Heavier fines
Points on your license
Insurance rate hikes
Safety inspection requirements
Impoundment in extreme cases
It’s not worth the risk. If you're ever unsure, stay on the safe side and reduce your speed.
The kind of trailer you’re towing makes a difference. A lightweight utility trailer won’t affect your speed and handling as much as a fully loaded camper or boat trailer.
Consider this:
Small trailers (under 1,500 lbs): Easier to tow, minimal speed restrictions.
Mid-size trailers (1,500–3,500 lbs): Requires a solid tow vehicle and attention to trailer brakes.
Large trailers (over 3,500 lbs): Often require a weight distribution hitch and special towing package.
Your owner's manual will provide towing capacity and speed recommendations for your vehicle. Never exceed the manufacturer’s guidelines.
Whether you're heading out on a cross-country road trip or just towing a trailer to a nearby job site, knowing the legal speed limit isn’t just about obeying traffic laws. It’s about safety, control, and being a responsible driver.
Remember:
Speed limits for towing vary by state
55–60 mph is safest on most motorways
Slowing down helps prevent accidents and equipment damage
If you're driving a car towing a trailer on a motorway, you have a bigger responsibility. Give yourself extra space, time, and caution. That little bit of mindfulness goes a long way toward making sure everyone gets to their destination safely.
That depends on the state. Some states allow towing at full speed limit, but others restrict it to 55 mph or lower. Always check local laws before towing at higher speeds.
Yes, if your trailer is wider than your vehicle and blocks your view, extended mirrors are legally required in most states. They help improve visibility and reduce blind spots.
Penalties vary by state but can include fines, license points, or even trailer impoundment in serious cases. Your insurance rates may also increase if you're caught speeding while towing.
What’s the Legal Speed Limit for Towing a Trailer on the Motorway?
