Abstract: The system comprises a first elongate blade and a second elongate blade. The second elongate blade is substantially in superposition with reference to the first blade. The first and the second blades are affixed together at one end. The system includes a user-actuated mechanism is connected at least to the second blade. The mechanism is selectively operable by a user of the snow-riding device to longitudinally reposition at least a portion of the second blade with reference to the first blade. This longitudinal repositioning modifies the efficient length ratio between the two blades and thereby the camber of the system. The system is self-contained and once integrated to the snow-riding device, the system permits a selective camber adjustment of at least a portion of the snow-riding device upon modifying the camber of the system.