Abstract: An adjustable axle assembly for use with a wheel comprises a first hub defining a first aperture in an off-centered position so geometric centers of the first aperture and the first hub are eccentrically located, the first aperture adapted to receive an axle; a second hub defining a second aperture in an off-centered position so the geometric centers of the second aperture and the second hub are eccentrically located, the second aperture adapted to rotationally receive the first hub; and a locking assembly coupling and controlling the rotational movement of the first hub and the second hub. The second aperture of the second hub includes a plurality of indents formed on the inner surface of the second hub separated by a predetermined angle for releasably engaging the locking assembly, wherein the plurality of indents represents an angle of eccentric rotation of the wheel.