Abstract: A deployable traction assembly comprising a studded mud flap mounted for retraction and extension on the vehicle by operation of a motor. The motor may have a shaft connected via spools and straps to the studded mud flaps. The studded mud flap may be mounted on the vehicle behind or in front of a set of wheels within a distance such that when the studded mud flap is extended and the vehicle moved backward or forward, the studded mud flap may extend under a set of wheels. The deployable traction assembly may include one or more sensors connected to sense position of the studded mud flap or load on a part of the deployable traction assembly, such as the shaft of the motor. A processor may be connected to receive signals from the one or more sensors and provide output for controlling the motor based on the received signals.