The air-filled or pneumatic tire is composed of a core filled with airtight sealed pressurized air. Usually, a tread made with reinforced steel belting or other materials, provides the contact area with the road and seals this inner core.
The tire would remain inflated with all the weight of the vehicle resting on it, since the air pressure within the tire is greater than atmospheric air pressure. The pressure of the air in the tire gives resistance against forces which attempt to deform the tire. When the tire hits bumps in the road, this gives the tire a slight degree of a cushioning effect. If you have experienced taking a ride in an old-fashioned carriage which had wooden wheels, you know precisely how huge of a difference a set of pneumatic tires can make.
Pneumatic tires also come with disadvantages. High-performance situations or highly dangerous applications for example, these tires can suffer a puncture and this will lead to a total failure. The consequence of a blowout at high speeds can result in a dangerous car crash. Military planners must take into account tires getting blown out by explosion shrapnel or shooting of guns. The worst nightmare of a vehicle crew is becoming trapped within a fire zone because of all of their tires becoming flat. Airless tires evidently don't suffer from these problems and hence, in some applications, might be more suitable.
The pneumatic tire might have issues as well with the variation in tire performance and air pressure. The lower pressure inside a tire may increase the comfort level and the traction. This is because of the fact that tires flatten a little and more tread is touching the road. The pressure of the air inside of the tire works to maintain the "up and down" stiffness as well as maintain the lateral stiffness of the tire. Thus, less air pressure enables the tires' sidewalls to flex. Unfortunately, this results in poor handling. Within an airless tire, the stiffness in those two dimensions is independent.
There are other problems with air pressure. Consumers are notoriously unreliable when it comes to maintaining proper air pressure. Tires that have incorrect air pressure can result in unsafe situations. It is important to bear in mind that pneumatic tires are also susceptible to temperature changes, that can be responsible for changing the internal pressure of the tire. It is really vital to take into account the type of environments you would be needing your machine to operate in so that you could inspect the tires on a regular basis and keep the equipment as safe as possible.