The Red X fin system is simpler, lighter, faster and stronger. Solid fin bases give more drive and performance increasing speed. Rigid fins combined with a powerful tip flex equals more speed and drive. The simple screw in system uses stainless steel fittings that never wear out. This pulls the fins tightly into the surfboard with a security you just can’t find using other systems. No specialised gear is needed – nothing but a single blade screwdriver. The X4 fins will provide you with drive and holding power while still allowing you to make tight turns.