A wheel characterized as “solid” refers to a circular component designed for rotation that is constructed from a single, continuous piece of material, lacking any spokes, gaps, or pneumatic inflation. An example would be the wheels found on some types of industrial carts, lawnmowers, or children’s toys. These wheels are typically made from materials like rubber, plastic, or metal.
The advantage of this design lies in its durability and low maintenance requirements. Because there is no air to leak or spokes to break, it is suitable for applications where puncture resistance and operational simplicity are paramount. Historically, these wheels predate pneumatic designs and continue to be utilized in environments where their robust nature outweighs the benefits of a smoother, air-cushioned ride.
