Methods and apparatus may allow for the protection of vehicle tires from ground debris. A swing arm configuration may be used to displace ground debris from the path of a vehicle tire. The length of the swing arm may be established to maximize the vehicle's angle of approach. The motion of the swing arm may be arrested with a swing motion arrest substantially collocated with a swing axis pivot point. A ground debris displacement system may be capable of unpowered operation from a single position on a vehicle.