The thick, solid rubber or polyurethane foam treads provide the cushioned ride of an air-filled pneumatic wheel without the possibility of a flat tire.

Also known as semi-pneumatic wheels, these have a tough, puncture-resistant tread surrounding a nonpressurized pocket of air to cushion like a pneumatic wheel without going flat. Their spoked hub keeps them lightweight at larger sizes.

These wheels consist of an air-filled rubber tire on a steel rim and are among the quietest, most shock-absorbing wheels available.

These lightweight wheels are commonly used on carts. They are filled with compressed air to provide the best shock absorption and a quiet ride.

These wheels have an iron core for greater capacities than other rubber wheels with the same quiet, smooth ride.

Also known as balloon tires, these have a rounded, cushioned tread for easy turning and good shock absorption.

Nylon or aluminum cores make these wheels lighter and more corrosion resistant than iron-core wheels without sacrificing capacity.