With so many different types of RVs—motorhomes, travel trailers, campers, and fifth wheels—you might wonder where all these names come from. As an RV enthusiast, I’ve done plenty of research on the topic, and here’s what I’ve found about fifth wheels.
So, why are they called fifth wheels? The term “fifth wheel” comes from the unique hitching system used to connect the trailer to a tow vehicle. This U-shaped coupling mechanism, mounted in the bed of a pickup truck, is a modern version of the fifth-wheel coupling that was originally used on horse-drawn carriages.
But there’s a lot more to fifth wheels and their hitching systems than just a name. Let’s dive deeper into what makes them unique and why they remain a popular choice for RVers.
The Origins of Fifth Wheels
Believe it or not, fifth wheel RVs have been around for quite a while—at least in concept. The name “fifth wheel” actually comes from the type of hitching system used to attach the trailer to a truck. But don’t confuse it with a gooseneck hitch—they aren’t the same thing (more on that in the next section).
The original fifth-wheel hitch dates back to horse-drawn carriages. Early versions featured a horizontal wheel or circular plate that allowed the front axle to pivot independently, making the carriage easier to steer. While horse-drawn carriages have faded into history (unless you’re in a Hallmark movie), the hitching system has stood the test of time.
How Fifth Wheel Hitches Work
Modern fifth wheel hitches work similarly, but instead of a circular wheel, they feature a U-shaped coupling mechanism. Unlike standard hitches that attach to the rear of a vehicle, a fifth wheel hitch is mounted inside the bed of a truck, with the RV hitch connecting from above.
This design offers key advantages:
- Better Stability – Reduces swaying while towing
- Easier Hookup – Simplifies the hitching process compared to bumper-pull trailers
- Stronger Towing Capacity – Allows for larger, heavier RVs
Fifth Wheel Size & Luxury
Fifth wheels are some of the largest and most luxurious RVs available. These aren’t the kind of trailers you impulsively buy for a weekend getaway. They’re big, heavy, and built for comfort.
- Average Length: ~30 feet (can range up to 40+ feet)
- Interior Features: Full-size kitchen, armchairs, dressers, king-size beds, and more
- Price Range: Starts around $50,000, with high-end models exceeding $150,000
For those willing to invest, fifth wheels offer the ultimate travel experience—but with size and luxury comes a higher price tag and greater towing responsibility.
Are Fifth Wheels Safe?
When towing a 10,000-pound RV (not including personal belongings, water, and supplies), safety is a top priority. Thankfully, fifth wheels are one of the safest RV types, thanks to their hitching system and weight distribution.
Why Fifth Wheels Are Safer Than Traditional Trailers
The gooseneck hitch plays a significant role in reducing trailer sway. Unlike a ball hitch, which connects at a low pivot point near the bumper, a gooseneck hitch attaches higher up in the truck bed, closer to the center of gravity of both the truck and the trailer. This higher connection provides better weight distribution and stability, making it easier to control your RV—especially when dealing with windy conditions, sharp turns, or sudden stops.
In contrast, ball hitches often require safety chains to help stabilize the trailer and prevent excessive swaying. However, these chains also limit the turning radius, making maneuvering more difficult. The gooseneck hitch, on the other hand, doesn’t need safety chains, allowing for smoother turns and better overall control. Additionally, since the gooseneck hitch is positioned higher, it resists wind gusts more effectively, making it less likely for the trailer to sway or lose stability.
Truck Strength Matters
While the hitch helps with stability, your truck’s towing capacity is just as important. Not every truck can handle a 10,000+ pound RV, especially when driving through mountainous terrain or high-wind areas.
If your truck is too small or underpowered, it will struggle to pull the heavy load, handle steep inclines, or brake efficiently. The most important factor is ensuring that the truck’s towing capacity matches or exceeds the weight of the fifth wheel. With a properly matched truck, towing a fifth wheel is both safe and efficient.
Final Verdict: Are Fifth Wheels Safe?
Yes! When properly hitched and towed with the right truck, fifth wheels are among the safest RVs on the road. Their superior stability, reduced sway, and balanced weight distribution make them much safer than standard travel trailers.
As long as you’ve secured the hitch correctly, chosen a truck with the right towing capacity, and drive with caution, you can confidently take your fifth wheel on the road with peace of mind.