Advance of the steering knuckle pin. The advance of the steering knuckle pin is a consequence of such a pitch of the steering knuckle, where the road puncture point by the axle of the steering knuckle lies in front of the tire contact point with the road. The front wheels of the car are towed by giving the steering knuckle pins sufficient advance while driving (not pushed), just like the table leg castor, when the table is moved. The advance of the steering knuckle facilitates the return of the steered wheels to the position when driving straight ahead and prevents the wheels from turning to the side when driving over uneven roads.