What Is A Tow Bar?
A tow bar is a tool that forms a crucial part of a flat towing setup, and most tow bars come in the form of a thick steel bar that attaches to the underside of the frame of a vehicle or RV doing the pulling.
The other end terminates in a ball mount or a similar accessory that links to the coupler or trailer receiver, completing the linking system. Since flat towing is a method where the towed trailer or car has all its wheels flat on the ground, using a tow bar offers a set of advantages compared to other towing systems.
What is a Tow Bar Used For?
Tow bars are used for pulling another vehicle, a trailer, or an RV. It’s a device that is attached to a vehicle’s frame to form half of a tow hitch system, and the other end can be used to pull a variety of loads. You can use a tow bar setup to pull another vehicle, and they are used in this way for recovery of disabled vehicles.
You can also use a tow bar to pull a flatbed trailer, and you can transport cars, boats, or even smaller heavy equipment in this way. A tow bar can also be used with enclosed trailers, and this setup is usually used for transporting smaller enclosures for livestock or horses.
A tow bar can also be used to pull a camper trailer or a small mobile home. You can also pull a motorhome or an RV using a tow bar setup using your truck, or do it in reverse – you can also install a tow bar to the base plate on your RV, and drive the latter to pull your truck instead.
A tow bar used for flat towing is one of the simpler setup you can get to start towing, and this in itself lends a few significant advantages to this system. One of the most attractive things about the simplicity of this setup is the initial cost. Using a tow bar to do a flat tow involves minimal modifications to the vehicle, and you do not need a major initial investment in towing dollies or trailers, either.
The appropriate tow bar, with mount or pintle hook, coupled with other necessities such as safety chains and tow lights, is almost everything you will need to pull a trailer. You can get a complete flat tow kit for your vehicle and it will likely have everything you need, and chances are you can set it up yourself.
Once you have a tow bar set up, then actual convenience of using it is also one of the strengths of this system. A tow bar setup is just about the fastest system for hitching and unhitching a vehicle since there is no need to off-load a trailer or lower the towed car off the tow dolly. You just need to unhook and you’re ready to drive.
What Does A Tow Bar Look Like?
Tow bars come in a wide variety of sizes, shapes and designs. The one thing they do have in common is the way they are installed on to the underside of the towing vehicle’s frame.
Other than that, a tow bar can range from something as simple as a flat tongue tow bar designed to go directly on the frame, to a more complex horizontal hitch tow bar designed for hauling heavier loads.
The image below shows what a standard tow bar looks like without any extra features or anything fancy and is more of a “universal” type of tow bar that can be used on a number of different vehicles.
You will have to find a place to mount these to the frame of the vehicle (or other recommended areas) and it can be a bit tedious and time consuming to do so. You might also want to look up having a tow bar bracket mounted to your vehicle first, to make the connection and setup easier and more reliable.
There are some tow bar bracket kits out there that are made for specific vehicles and these will fit much better with less customization (in many cases) than a “universal” type of tow bar mounted to the frame and these tend to be a little bit stronger too but add to the overall cost of the setup.
I have an example of a tow bar bracket kit (picture below) that is custom made to fit a 2010-2014 Jeep Wrangler and will mount right up (it’s supposed to anyways).
What Is a Tow Bar Hitch?
A tow bar hitch is a device that is securely attached directly to the rear frame of the vehicle. The hitch forms the frame to which the rest of the tow bar setup is attached to, so it’s crucial that they are perfectly matched to the vehicle and the towing load they are meant for, and then properly installed to the vehicle.
A tow bar hitch is also sometimes referred to as the trailer hitch, and the term is also commonly used to refer to the whole setup behind the vehicle – that is, including the frame bar, tow bar, securing pin, tow ball mount, tow ball, wiring and all that comes with it.
Tow bar hitches come in two main formats, the fixed drawbar and the receiver type. The fixed drawbar type is the sort of tow bar hitch that bolts as a single piece of steel bar to the frame of the vehicle, and these will usually have a hole or receptacle for the tow bar and the tow ball mount. Usually, you will get the tow bar hitch, tow bar and the rest of the accessories as part of a trailer hitch kit.
A tow bar hitch can also come as a receiver type hitch, and this type usually comes with a rectangular tube opening that can receive aftermarket ball mounts. This type is well suited for owners that want to switch between tow bars and other accessories such as cargo carriers and bike carrier racks.
Installing a tow bar hitch is usually an operation that does not require drilling new holes into the vehicle chassis. That said, it’s still a procedure that requires expertise, as well as attention to the proper torques for the nuts and bolts installed in the process.
The larger the tow bar hitch you need to install, or the heavier the load you plan to pull, the more you need to consider having a trained mechanic or technician to install the tow bar hitch for you.
Once installed, the tow bar hitch is usually hidden from view under the vehicle, with just the tow bar and tow ball mount sticking out to give access to the trailer coupler.
What Is the Towing Capacity of a Tow Bar?
The towing capacity of a tow bar is the maximum legal limit to the load it can safely pull. The towing capacity of a tow bar is often specified in pounds, which can range from 2,000 pounds for light loads to as heavy as 17,000 pounds or more.
Towing capacities for towing hitches are also classified under four or five weight classes as defined by the Society of Automotive Engineers (SAE). Class I tow bars are rated to pull up to 2,000 pounds, while Class II can safely pull up to 3,500 pounds. Both these classes are considered to be suited for light loads only.
It’s only when you get to Class III tow bar setups that you can begin to consider larger loads such as boat trailers or campers, as hitch setups in this class are rated for up to 5,000 pounds. Class IV setups can pull up to 10,000 pounds, easily double that of the Class III tow bars.
That said, the towing capacity of a tow bar is only part of the equation to determine the maximum load your towing setup can safely carry. You will also need to consider the maximum towing capacity of the vehicle doing the towing, as well. The lowest weight among these numbers is the towing capacity of your whole towing setup.
What About The Tow Bar Rating?
The tow bar rating is another term to describe the towing capacity of a tow bar. When a manual says that a tow bar is rated for a certain load, it’s a reference to the maximum weight that the tow bar can be used to pull – assuming that the rest of the tow bar setup and the vehicle is up for it.
What Can You Tow With a Tow Bar?
Generally, you can tow a vehicle or trailer with a tow bar as long as it’s in a roadworthy condition and its weight is within the maximum towing capacity your vehicle and tow setup can give you. As long as the vehicle or trailer can be towed flat (aka flat towed), then you can generally tow it with a tow bar.
That said, there are loads that you should not tow with a tow bar setup. Tow bar setups are never meant to transport passengers in the camper or RV that is being pulled, for example. Many vehicles, when towed with all four wheels on the road, can also suffer damage to their transmission unless you can set them up with a supplementary lubrication system.
If the vehicle manual warns you against flat towing the vehicle, then you probably should not use a tow bar to transport it and instead look for another alternative like a tow dolly or a trailer.
What Is an Electric Tow Bar?
An electric tow bar is a form of retractable tow bar that you can deploy with the push of a button. Many of them can be activated using a button inside the trunk of the car, and some of them can even be deployed remotely. Some electric tow bars can also be flipped back to a hidden position using the same switch, as well.
What Is A Non Binding Tow Bar?
A non binding tow bar addresses, or at least tries to alleviate, one of the common complaints towing setup owners face at times – the binding that often happens between the trailer coupler and the tow bar.
A tow bar set up will often bind if the link is still under tension, and it will often require a few small adjustments by the driver (forward and backwards motions) to get the tow bar link aligned such that there is enough slack to unhitch it easily.
A non binding tow bar, on the other hand, comes with features that ensure that you can easily free up a tow bar link even if the link is still under tension. These features may involve specialized shapes for smoother movement, lubrication on the locking pins or the release mechanisms, or a combination of both.
What Is a Swan Neck Tow Bar?
A swan neck tow bar is a smaller tow bar setup where the tow bar shaft and the tow ball is a single piece which goes on to the tow bar hitch. It’s a popular tow bar design in the E.U., and it’s a compact, cost-effective design that can look more aesthetically pleasing on smaller cars. A swan neck tow bar is available as fixed or detachable types.
What Is a Removable Tow Bar?
A removable tow bar is any tow bar setup that you can remove and store when not in use. While there are trailer hitch setups that you can remove with a bit of effort, most removable tow bars are meant for use with receiver tube tow bar hitches.
Unlike fixed drawbar hitches that are usually bolted in place, receiver tube hitches allow you to unhook the tow bar by simply removing a locking pin or nut and pulling the component out of the receiver tube.
What Is a Retractable Tow Bar?
A retractable tow bar is a tow bar setup that you can fold, flip or tuck out of the way when not in use. One common form of a retractable tow bar is the type that flips under the bumper and out of the way.
Retractable tow bars can be manually folded away or deployed and some retractable tow bars can also be activated using an electrical switch, as well.
What Is a Tow Bar Stabilizer?
A tow bar stabilizer is a device that helps stabilize the towing setup – that is, it helps cut down wobbling, swaying or pitching while the vehicle and the tow load is in motion.
Most tow bar stabilizers are designed to dampen lateral or vertical movements around the axle of the tow link. By themselves, tow bar stabilizers are meant to increase driving comfort – you still need to make sure that the whole towing setup is inherently stable though.
What type of tow bar is best? ›
Flange towbar types
This is the most versatile design of towbar because it can be used with tow ball mounted accessories i.e. cycle carriers, bumper protectors & all types of stabilisers, all mounted between the towbar & ball. The flange towbar is available in both fixed and detachable styles.
How does a tow bar work? A tow bar connects from the front of the dinghy vehicle to the back of the RV. The RV pulls the dinghy, and the tow bar pivots, allowing for smooth towing. The dinghy vehicle must be equipped with base plates or brackets on the front end, and the RV must have an RV hitch.What are the different car tow bar types? ›
- Flange Towbar.
- Swan Neck Towbar.
- Fixed Towbar.
- Detachable Towbar.
Damaging Your Vehicle
If you try to back up with a tow bar still connecting your RV and towed vehicle, there is a good chance you could damage the dinghy-towed vehicle. The tow bar is connected to the frame, so any pressure or force applied to the tow bar will be transferred to the frame of the towed vehicle.
An engine that has been towing will be considerably more strained than an engine of the same age that has been tow-free. Hence, when purchasing a car with a towbar on, it's important to consider that the engine may be less proficient and may even give out quicker than the engine of a towbar-free vehicle.How do I choose a tow bar? ›
Always choose the towbar that is appropriate for what you are towing. Always check what your vehicle's tow capacity is and compare it to what you are towing. Once you have made sure your vehicle has the ability to tow the load, choose the appropriate weight class of towbar for your vehicle.Do tow bars need servicing? ›
"Although a towbar is a robust piece of steel, regular inspection and servicing must not be neglected". In order to maintain your towbar or that of your customer as well as possible, there are a few tips & tricks you should observe.What are the two types of tow bar? ›
Types of Towbar
There are 2 styles of towbar available. You can choose between either a flange ball towbar, where the towbar has a faceplate with the towball bolted to it, or you can get a swan neck towbar which has a one piece neck with the towball attached.
This is where towbars can truly shine as, despite their small size, they can go a long way in protecting your bumper and the entire framework of your vehicle. This means even if you are rear-ended, it will be the vehicle behind you that will suffer a significant amount of damage as opposed to your car.Why do some tow bars have 2 sockets? ›
Twin electrics (the second socket is a 12S socket) provides you with two 7 pin sockets at the rear of your vehicle. This allows you to tow any trailer or caravan as your entire road legal lighting (including reversing lights) are provided.
What is a Class 3 towbar? ›
Class 3 towbars are made to carry medium weight loads, with a rating of up to 1600 Kgs. They are best suited for towing small boats, multi-motorcycle trailers, and compact cars.What is a Class 2 tow bar? ›
Standard towbars, or Class 2 towbars, are designed for lighter duty towing applications up to 1600kg. They come with plug and play wiring and have been designed to fit a range of vehicles with lower tow ratings; such as small passenger vehicles.What should you not do when towing? ›
- Overworking Your Engine. The number one mistake people make, by far, is overworking their tow vehicle. ...
- Wrong Weight Distribution Bars. ...
- Not Checking or Maintaining Brakes. ...
- Poorly Loaded Vehicles. ...
- Wrong Ball/Ball Mount. ...
- 6. “ ...
- Low-Pressure Tires. ...
- Not Lubing Your Components.
Tow bars frighten people, as they wonder what the cars been pulling and if the clutch has had a hard time and likely to go on them once they've bought your car, so may well look for a similar car without a tow bar (losing you the sale).How high should a tow bar be from the ground? ›
The EC Directive 94/20/EC states that the towball height should be between 350 and 420mm with the vehicle in the 'laden' condition.Do I need to tell car insurance about a tow bar? ›
If you are planning to fit a tow bar to your vehicle, you need to inform your insurance company to prevent your policy being invalidated. If you were to make any modification to your vehicle, your insurance company would need to be alerted as it can affect your policy.Does a tow bar reduce insurance? ›
Tow bars are classed as a modification because they differ from the manufacturer's factory specification, so you should let your insurer know if you are fitting a tow bar to your car. That said, the addition of a tow bar is unlikely to increase or decrease your insurance premium.Should tow bar be red or green? ›
If you have a detachable tow bar ensure the safety indicator is fully green which indicates you have correctly locked the towbar in place. If the indicator is coloured red or only partially green, the towbar has not been properly connected and it is not safe to tow.How long do tow bars last? ›
How long should a tow bar last? It varies, depending upon weights, road condition and how far out of level your tow bar is, but a reasonable life expectancy is around 70,000 miles.What is a Class 4 tow bar? ›
Heavy duty towbars, or Class 4 towbars, are designed for towing applications up to 3.5 tonnes. Like Class 2 towbars, they come with plug and play wiring and have been designed to fit a range of vehicles with higher tow ratings; such as 4WD's and SUV's.
What weight can a tow bar hold? ›
The weight that the drawbar of your bike carrier, trailer, caravan, boat trailer or horsebox exerts on your towbar is called nose weight. This should never be too high or too low and should always keep within a certain margin. This maximum nose weight differs per car, but usually lies between 45 and 75 kg.Do you tie the steering wheel when using a tow bar? ›
Expert Reply: You would not lock out the steering on the vehicle being flat towed. Doing so would cause the wheels to scrub (drag sideways) when turning. The steering needs to be unlocked and the wheels will turn accordingly and straightened back out when needed.Do I need dedicated wiring for my tow bar? ›
Towbar Wiring Kits
It is always best to buy a vehicle specific wiring kit as this will synchronise perfectly with your car's electrical system and installing a universal wiring kit could impact on your warranty.
This is not allowed and must be avoided when driving without a trailer, so you should remove the towball. Basically, it makes sense to remove the towball whenever you are not pulling a trailer. This is mainly due to insurance reasons.What is better tow dolly or tow bar? ›
If you plan on attaching and detaching often, a tow bar is the easier way to go. A tow bar is also easy to stow and disassemble. If you decide on an RV tow bar, you will need a few pieces of equipment including: Tow bar for motorhome use.What is the bolt for on a tow bar? ›
In a high tensile joint, like this towbar, the clamping force on the bolts presses the mating surfaces of the parts together - really hard - and it's the bearing pressure and surface interaction between the two parts that stops the joint from moving. In this case, the chassis rail and the towbar.What do Americans call a tow bar? ›
A tow hitch (or tow bar or trailer hitch in North America) is a device attached to the chassis of a vehicle for towing, or a towbar to an aircraft nose gear.How fast can you go with a tow bar? ›
The maximum recommended speed is 55 mph when towing.Can I legally fit my own tow bar? ›
Not only is fitting it by yourself a huge safety concern, but you could also be invalidating the towbar or car manufacturer's warranty by doing the work yourself. Unless you are a mechanic or towbar fitter, we would always advise that your towbar is installed by a professional so you can be sure it is safe and secure.Why are tow bars so expensive? ›
Purchasing a towbar and wiring kit can cost hundreds of pounds. You may wonder why you have to pay so much? The costs mostly cover the technical development, testing and production of the towbar.
What is better fixed or detachable towbar? ›
A detachable towbar is just as safe and sturdy as a fixed towbar, with the added benefit of being able to remove the neck. Some detachable towbars allow you to tow and carry bikes at the same time and when you are not towing, it becomes almost invisible once removed.What is difference between flange and swan neck towbar? ›
The flange ball towbar features two distinct parts — the towball and the tow neck — which are bolted together to create the towbar. In contrast, the swan neck towbar features the towball and the tow neck as one single solid unit.What is the difference between 7 pin and 13 pin on a tow bar? ›
The difference between a 7-pin and 13-pin plug is that a 13-pin plug has more functions. A 7-pin plug only supplies in basic lighting, such as blinkers and brake lights. Perfect for bike carriers. The additional pins in the 13-pin plug are used for the reversing lights and the rear mist light, among other things.Which flange connection is the strongest? ›
Weld Neck Flanges
It gives the highest level of joint integrity as it is butt-welded with a pipe. These types of flanges are used in high pressure and temperature application.
There are 3 types of towbar electrics plugs, including single 7 pin electrics, single 13 pin electrics and twin electrics. Single electrics use one plug to connect your vehicle and trailer electrics, whereas twin electrics require two 7 pin plugs, which is usually necessary for towing older caravans or trailers.Can you go faster than 55 with a tow dolly? ›
Keep your speed at 55 MPH or under when driving with a tow dolly. The most straightforward answer as to why this is important deals with the safety of yourself and others. Traveling at a higher rate of speed will cause your haul to drift from side to side.Why do I need a bypass relay for towbar? ›
The bypass relay acts as an isolator between the tow bar electrics and the vehicle's electronics. The bypass relay prevents the vehicle from thinking there's something wrong, (the trailer or bike rack wiring placing additional load on the vehicles electronic system) and getting upset about it.What is the max tow bar angle? ›
The maximum angle between the ground and the aircraft towbar should only be five degrees.What is towbar coding? ›
Towbar Vehicle Coding
When these are fitted some vehicles are required to be coded, this means that the vehicle understands that the vehicle will be towing and thus activate the necessary function on the car.