Redwind h50 xlr cult upgraded bearings with fulcrums cult bearing system cult bearing system integrates an incredibly corrosion resistant stainless steel with a surface thermo chemical treatment and ceramic balls resulting in a 9 times more smoothness than standard bearings fulcrum dynamic balance in the rim thanks to special operation of the production process the carbon fibre layup is positioned in such a way as to obtain perfect rim balance available as a 50mm 80mm or 105mm rim heig