A wheel assembly may include an inner rim to be coupled to the hub of the vehicle, and an outer rim surrounding the hub. The wheel assembly may also include gas springs operatively coupled between the inner rim and the outer rim to provide a gas suspension permitting relative movement between the inner rim and the outer rim. The wheel assembly may also include tread assemblies carried by the outer rim. Each tread assembly may include a tread member support coupled to the outer rim, and spaced-apart tread members carried by the tread member support and defining a tread pattern therebetween. Each tread member may include at least one rubber layer, and at least one reinforcing layer in stacked relation.

A wheel assembly may include an inner rim to be coupled to the hub of the vehicle, and an outer rim surrounding the hub. The wheel assembly may also include gas springs operatively coupled between the inner rim and the outer rim to provide a gas suspension permitting relative movement between the inner rim and the outer rim. The wheel assembly may also include tread assemblies carried by the outer rim. Each tread assembly may include a tread member support coupled to the outer rim, and spaced-apart tread members carried by the tread member support and defining a tread pattern therebetween. Each tread member may include at least one rubber layer, and at least one reinforcing layer in stacked relation.

A wheel assembly may include an inner rim to be coupled to the hub of the vehicle, and an outer rim surrounding the hub. The wheel assembly may also include gas springs operatively coupled between the inner rim and the outer rim to provide a gas suspension permitting relative movement between the inner rim and the outer rim. The wheel assembly may also include tread assemblies carried by the outer rim. Each tread assembly may include a tread member support coupled to the outer rim, and spaced-apart tread members carried by the tread member support and defining a tread pattern therebetween. Each tread member may include at least one rubber layer, and at least one reinforcing layer in stacked relation.

An adjustable airless tire with a piston system includes a fluid container connecting with a plurality of spoke structure of pistons to transfer a load of a vehicle from a ground contact surface of a tire to whole walls of the tire. A sensor detects a tension of the tire and a variation of the tension during driving. A control component adjusts the tension of the tire according the load of the vehicle and the road conditions to improve its fuel efficiency, comfortability, controllability and safety. A rim of a wheel keeps an appropriate distance from the tire to limit the maximal level of downward movement of the supporting rods, and support the load of the vehicle if the tire is overload or the piston system lose their function. A transversely curved tire forms closed space between the tire and the rim of the wheel to prevent sticking of foreign objects between them.

An adjustable airless tire with a piston system includes a fluid container connecting with a plurality of spoke structure of pistons to transfer a load of a vehicle from a ground contact surface of a tire to whole walls of the tire. A sensor detects a tension of the tire and a variation of the tension during driving. A control component adjusts the tension of the tire according the load of the vehicle and the road conditions to improve its fuel efficiency, comfortability, controllability and safety. A rim of a wheel keeps an appropriate distance from the tire to limit the maximal level of downward movement of the supporting rods, and support the load of the vehicle if the tire is overload or the piston system lose their function. A transversely curved tire forms closed space between the tire and the rim of the wheel to prevent sticking of foreign objects between them.