Abstract: The invention provides a torsion spring bar axle which combines a rubber spring axle with a steel torsion rod for an unexpected result. The axle comprises an axle tube which houses a hollow torsion rod between which are placed rubber bodies creating a rubber spring axle inside the hollow torsion rod there is also a steel torsion which is internally biased. The steel torsion rod is adjustably connected to the axle tube on one end and a wheel swing lever on the other end. The hollow torsion rod is also connected to the wheel swing lever. This allows for less spring action with increasing loads and a soft deflection of the wheel swing lever.