Why Do RC Tires Balloon: 5 Reasons And Solutions

Why Do RC Tires Balloon? RC tire ballooning is the process of the tire becoming larger when inflated with air. This phenomenon is typically seen with foam and rubber tires, particularly on RC cars and trucks. Ballooning occurs because when air is pumped into the tire, it pushes against the foam’s compressive strength. Eventually, enough pressure builds up inside the tire that it expands its outer layer causing it to become round and increase in diameter. The amount a tire inflates mainly depends on how thin or thick its walls are as thicker walls can withstand higher levels of internal pressure for longer. Managing your tires’ inflation level can prevent ballooning from happening too much otherwise you may find your RC vehicle has less traction and grip on different surfaces leading to poor performance.

Reasons Why RC Tires Balloon

There are a few potential causes for RC tires to become inflated:


Why Do RC Tires Balloon? Over-inflation of RC tires is a common and costly mistake that can result in ballooning. Inflating your tires beyond the manufacturer’s specifications can cause them to expand, reducing contact patch size and traction while increasing tire pressure and temperature. During long runs, over-inflated tires can experience significant heat buildup leading to further bloating and potential separation of beads from the rim, resulting in poor overall performance. Prolonged use of inaccurate air pressure also increases wear on the sidewalls as more weight is put on them as if to account for the lessened contact patch. Fortunately, by routinely inspecting your RC car’s tire pressure and following manufacturer directions when filling them up, you can protect yourself from these unwanted effects.


Heat can wreak havoc on RC tires, causing them to balloon out and become unusable. This is especially true when you have an RC car that’s oftentimes seen running at fast speeds for extended periods. Any kind of heat build-up causes the rubber to expand, resulting in tires that can get dangerously out of shape and put a real damper on the fun you were having driving your RC car. Thankfully, this isn’t something that RC drivers are completely helpless against. Proactive measures such as keeping your car in a cool area between races or drives and making sure your tires aren’t over-inflated can help lower the chances that you’ll experience tire ballooning due to heat.


Tires can lose their suppleness over time, which makes them more prone to inflating as they get older. This is especially the case for tires that are several years old and have been sitting out in the heat and sun for a considerable amount of time.  As remote control car owners grow older, they face a new challenge: replacing their RC car’s tires at regular intervals. Over time and with use, RC tires tend to balloon in size due to air pressure buildup inside their rubber walls. This is compounded by the fact that RC cars generate higher temperatures than normal road vehicles, meaning that wear and tear become exacerbated as the years go by. Fortunately, tire manufacturers have been quick to recognize this problem and are now producing high-quality tires specifically designed for RC cars. By replacing your tires periodically with these, you can ensure your vehicle remains in peak condition regardless of its age.


If the tire has been injured in some way, such as by a puncture or a tear, this might result in the tire becoming inflated. This is because the damaged area is unable to withstand the air pressure that is contained within the tire.

Incorrect tire size:

The tire can become inflated if the wheels on the vehicle are not the appropriate size for the vehicle. This could be because the tire is not able to properly sustain the weight and dimensions of the vehicle.

To make sure that the tires are not over-inflated, it is essential to check the pressure of the tires regularly, especially before using the vehicle. If you have any reason to believe that the tread of your tires is becoming unevenly worn, it is in your best interest to have a qualified mechanic examine your vehicle so that the source of the issue may be identified.

Is Ballooning Bad for the RC Tires?

The term “ballooning” refers to the condition that occurs when the tires of an RC car become over-inflated. This can be detrimental to the tires. When a tire is over-inflated, the pressure inside the tire is too high, which can cause the tire to wear out more quickly and can also cause the car to have poor handling. When a tire is under-inflated, the pressure inside the tire is just right.

Tires that have been inflated to an excessive level can lead to a variety of issues, including the following:

•    Higher wear on the center of the tire The increased pressure within the tire can cause the center of the tire to wear out faster, which can make the tire less effective and decrease the tire’s lifespan.

•    Reduced traction: Driving with over-inflated tires can lessen the amount of contact the tire has with the road, which can cause the vehicle to be less stable and more difficult to control.

•    Reduced driving comfort: If the tires on your RC car are overinflated, not only will the ride be less comfortable, but the vehicle will also bounce around more when driven over uneven terrain.

•    Lifespan reduction for the tire Over-inflated tires can cause the tire to wear out more quickly, which in turn reduces the tire’s lifespan.

It is essential to ensure that an RC car’s tires are always inflated to the proper pressure, which may be found either on the sidewall of the tire or in the owner’s manual for the vehicle. In addition to this, it is a smart idea to check the pressure in the tires regularly, particularly before using the vehicle.

Also Read: Do RC Tires Need Foam

How to Avoid RC Tires From Ballooning

Not Racing

Avoiding racing with an RC car is one way to prevent the tires from ballooning, as racing places additional strain on the tires and can lead them to become overinflated.

The RC race car is subjected to fast speeds and abrupt twists throughout the competition, both of which can cause the tires to heat up and expand. In addition, the process of repeatedly applying the brakes and accelerating might cause the tires to wear out more quickly, which makes them more susceptible to ballooning.

Because it will not be racing, the radio-controlled vehicle will not be subjected to these conditions, which will assist to increase the RC vehicle’s lifespan and decrease the possibility that its tires would balloon.

Additionally, even if you aren’t participating in a race, it’s imperative that you keep the pressure in your tires at the correct level and that you check it on a regular basis. This will assist in ensuring that the tires do not have an excessive amount of air pressure in them and that they are able to perform to their full potential.

It is also possible to reduce the risk of tire ballooning by doing routine inspections of the tires for any symptoms of the damage, such as punctures or tears, and replacing the tires if necessary.

Buying Belted Tires

Tire ballooning is something that can be avoided to some degree by purchasing belted tires for an RC car. Belted tires are those that have an inner reinforcement belt that can be constructed of materials such as kevlar or nylon. This belt gives the tire additional support and stability, making it possible for the tire to last longer.

Because the belt assists in distributing the weight of the vehicle more evenly across the tire, this reinforcement can help to cut down on the probability of the tire ballooning. This decreases the stress that is placed on any one section of the tire, which in turn helps to increase the tire’s overall lifespan.

The price of belted tires is often higher than the price of conventional tires, and they are also more difficult to locate. However, you will most often see them installed in more expensive radio-controlled cars and racing contests since they offer superior stability and more consistent performance.

In addition, it is essential to ensure that the pressure in the belted tires is maintained at the prescribed level and to check the pressure regularly. This will assist in ensuring that the tires do not have an excessive amount of air pressure in them and that they can perform to their full potential.

Before making the purchase, it is essential to determine whether or not the belted tires are compatible with the vehicle and to ensure that they fit the vehicle properly.

Use Mesh and Glue 

When reinforcing RC tires, using mesh and adhesive can help prevent the tires from ballooning. In this technique, small pieces of mesh, such as nylon or kevlar, are cut and glued into the interior of the tire. Because the mesh lends the tire greater support and stability, it can assist in more evenly distributing the load and reducing the strain that is placed on any one particular location of the tire.

To use this method, you will need a few supplies:
•    Mesh material (nylon or kevlar)
•    Scissors
•    A glue that is compatible with the mesh and the tire material

Here is the process:
•    Cut the mesh material into small pieces, slightly larger than the size of the hole in the tire.
•    Apply a small amount of glue to the inside of the tire, where the mesh will be placed.
•    Press the mesh piece onto the glue, making sure it’s fully adhered.
•    Repeat the process for the remaining holes in the tire.
•    Allow the glue to dry for the recommended time before using the RC car.

It is essential to maintain the tires at the proper pressure and to check the pressure regularly to get the most out of this technique, which can assist to lessen the likelihood of ballooning and extend the lifespan of the tire.

Before utilizing the radio-controlled vehicle, you need to make sure that the glue you used is completely dried and that you used glue that is suitable with the material of the mesh and the tires. In addition to this, it is essential to check and see that the mesh does not get in the way of any of the car’s mechanical or electrical components.

Use Fish Line

If you are an RC enthusiast, you know the importance of having your tires reinforced to avoid ballooning. Ballooning occurs when heat causes the tire’s rubber to expand, resulting in extra resistance while driving and potential loss of control. While traditional methods such as cyanoacrylate glue or skoolie tape can do the trick, a lesser-known yet much more reliable way is to use a fishing line! This surprisingly affordable solution can be found at almost any sporting goods store and works wonders at fortifying RC tires against this irritating issue. In addition to the easy application and improved performance, what’s not to like? Upgrading that tire game was never easier – pick up some fishing line next time you hit the store and keep those tires from ballooning!

The fishing line appears to be the most cost-effective alternative, however, it may not be a long-term remedy. This might work as a stopgap until you could afford a better pair of tires. Although some users have suggested gluing and others have opted for knotting, I believe both would be optimum when working with a braided fishing line (a 25 lb test seems to be optimal).

Tie your tires with a fishing line, but if you don’t want to glue them, you can always tie the lines instead. Just make sure to add two knots so that the tire doesn’t become unbalanced. This does not appear to be a common practice any longer, maybe because of the complications it can bring about if the lines break or get snagged while not fastened down when the glue wears off.

Use Duct Tape

Duct tape can be a handy tool for keeping your RC tires from ballooning due to excessive air pressure. That’s right — instead of replacing the tires or trying to find a new set, simply wrap some quality duct tape around the circumference of each tire. This will seal in all the excess busted beads that were filling up with too much air, allowing you to keep racing without interruption. Plus, the additional weight of the tape won’t make much difference in lap times so you don’t need to worry about that. So go ahead and give this quick fix a try and find out why so many RC enthusiasts are turning to duct tape as their go-to solution for keeping their running cars in perfect condition!


RC car tires can balloon due to too much air pressure. This occurs when a tire is inflated with more air than necessary, causing it to swell up and look like an inflated balloon. In the long run, this added air pressure makes the tires rigid and unable to absorb shock during driving; resulting in a bumpier ride for your RC car. Taking off excess air and keeping a tire down to its optimal pressure level for your terrain can help you avoid ballooning and also provide improved traction on loose surfaces. To maintain an optimal tire pressure range, it’s best to invest in an RC tire gauge that will ensure a consistent level of inflation over time, preventing any potential dangers from sudden drops or surges of pressure.