Snowboard Arbor Element 2018/19 Parameters System Rocker - rocker deflection, which is more pronounced in the center of the board. On the toe and heel, the rocker is reduced, the so-called Parabolic Rocker for maximum performance at higher speeds and better sailing in powder. Rocker delivers an easier start to the curve, better powder flow, and a smoother ride overall. Grip Tech - sidecut adds contact points under your feet for a more ergonomic way of adhering to snow,