The invention relates to a wheel-force dynamometer (1) for the measurement by means of force sensors (6) of forces and torques that act upon a vehicle tire (2a) and a vehicle wheel (2), wherein the vehicle wheel (2) is mounted to rotate by means of a wheel axle. The wheel-force dynamometer (1) according to the invention is characterized in that the wheel axle is in the form of a rotor (3) which is hydrostatically mounted, axially fixed and able to rotate in the circumferential direction, in a rigid and positionally fixed housing (5).