Why Aren’t Tires Solid? (Everything You Wanted To Know)

Car drivers are curious why their tires are not solid. So in this article, we will discuss why the tires are not solid. So let us get started. 

So why are tires not solid? There are plenty of reasons why tires were not made solid. One reason is that it is much easier to replace an air-filled tire than to replace a very heavy and solid rubber tire. 

Solid tires have their uses, and these include forklifts and others. Years ago, tires were made solid, but there have been some changes and improvements in the automotive industry with innovation and change. A lot of car drivers ask why their tires are not solid. 

This question is something that has been asked by many. And so this article is made to those car drivers who are asking this same question. 

In this article, we will address questions about solid tires. So let us start. 

Why Aren't Tires Solid

Why Don’t They Make Car Tires Solid?

Solid tires sure have their usage, like the forklift. A forklift is a typical example of a solid tire, and it operates on smooth factory or warehouse floors. If you ride on a solid chunk of rubber, it will give you traction, and it can be extremely rough. 

Rubber can also be very expensive. In an air-filled tire, the air will help absorb a variable amount of shock. It will also allow the tire to give a bit over in obstacles like potholes or rocks. Changing an air-filled tire is much easier than replacing a heavy and solid rubber tire. 

If the vehicles are built first, some of the tires are solid. They do not make cars with solid tires nowadays because they would be cumbersome. 

And the weight can have a significant effect on the vehicle’s handling in terms of suspension, cornering, comfort, acceleration, and fuel economy. The tires are also challenging, and they will not soak up the bumps, and it can be a bad ride. 

Do They Make Solid Tires?

A solid tire is suitable for demanding applications in slow-moving vehicles or trailers with a high risk of damage and impact. They are stable and are resistant to puncture. They are also maintenance-free. 

A solid tire has a high loading capacity and is also very economical. They are suitable for airport vehicles, forklift trucks, side-loading forklifts, heavy-duty transport vehicles, platform trucks, and some other industrial vehicles. 

These tires are also in use in air and seaports, logistic centers, and industrial applications. Industries are also critical, like food and pharmaceutical industries like a clean environment. 

How Do I Make My Tires Solid?

A foam-filled tire can replace the tire’s air with an expanding rigid foam that is made from urethane. Tires can never go flat, and it is good and valuable for tires punctured repeatedly. However, they also have their disadvantages. 

Foam tires are rigid and harder to maneuver if it is moving. You must not use them if you need your vehicle to handle them well. Foam-filled tires can cause additional wear on the tread because of the flexibility allowed by the air. 

And they can put less strain on the rubber. The strain is made apparent in heavier vehicles like tractors. A smaller tire is more ideal for filling with foam. 

Before filling your tires with foam, you have to wear safety glasses. If you fill a small tire, like on a lawnmower, you will need at least two cans of a minimal expanding foam. You then have to lift the vehicle off the ground and let the wheels not rest on any surface. 

You then need to drill a hole about the same size as the can nozzle. It is also vital that you remove the valve stem of the wheel and insert it with pliers to allow the air to escape from the tire if the foam takes place. The valve stem insert is the metal device that you can find inside the valve stem. 

You have to make sure that the hole you will drill is just above the valve stem. You have to watch the valve stem if the foam begins to ooze out at the bottom of the wheel, cap the valve stem, and then continue with the insertion of the foal until it oozes out of the top-drilled home.

Why Do Tires Have To Be Hollow?

The Scottish veterinarian’s first tire and inventor, John Boyd Dunlop, is a bicycle for his son. This was way back in 1887, and it was made of solid rubber. Later on, pneumatic tires were developed, and the air inside is by being a cushion, and it dampened the shocks of driving and traveling on uneven roads and surfaces.

As a result, the ride is more comfortable and will make the whole weightless. A tire filled with a specially designed interior can give you the same ride quality as pneumatic tires, but they are punctured. A solid rubber tire still exists today for lawnmowers, golf carts, forklifts, and some others.

Are There Nail-Proof Tires?

Yes, there are nail-proof tires. The Michelin tires are a unique puncture-proof tire system, and it is an airless mobility solution for passenger vehicles and will reduce the risk of flat tires. It can also reduce the risk of some other air loss failures from road hazards and punctures. 


In summary, many car drivers and nondrivers wanted to know if there are still solid tires being made today. They are also asking why car tires are not made solid. 

They want to know about the advantages and disadvantages of solid tires. This article is a guide. There are still solid tires being made today.

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Image credits – Canva

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My name is Hank, and I've been in the automotive industry for 27 years. I've been working in my own auto repair shop for the last 13 years, and now I want to help you here, on my blog. Let me know if you have any questions. Read more