Increases the lateral rigidity of the wheel without gaining weight. The holes of the rim are off-center: this allows to close more the umbrella that form the rays. Thus the spokes ensure a better maintenance of the rim and the lateral rigidity of the wheel is increased. The risk of taking sail is also reduced. In addition, the asymmetry makes it possible to further balance the spoke tensions between the two plies and thus guarantees a better durability of your wheel.