The Radical FT for descent-oriented ski mountaineers and freeriders that leaves no room for doubt about the frameless binding: All other systems pale in comparison to its performance-to-weight ratio. When the shock absorber is slid forward into the locked position, the carbon plate stiffens. The rear rubber shock absorbers provide cushioning in the "lock" position. The ski thus is stiffer. At the same time, you remove torsional interaction between the carbon plate and toe piece, achieving more torsional rigidity. In the "unlock" position the ski retains its natural flex.