The body, side plate and rotor of the Helios SX are constructed of Okuma C-40X long-strand carbon fiber. Parts constructed from C-40X carbon fiber are 25% lighter and 50% stronger than their graphite counterparts. C-40X construction is also completely corrosion-free. At the back end of the reel and including the reel stem and foot is Okuma Torsion Control Armor. This unique design anchors the reel body within a wide yoke. Under stress, this wide footprint virtually eliminates flex and twist. Furthermore, it maintains a firm connection between the internal gears.On the Helios SX, the full rotor system is ported to an extreme level. Instead of guarding against water intrusion, the Cyclonic Flow Rotor focuses on evacuating water from the system and drying the reel out. In rainy environments, the rotor system dries faster than a traditional design when both are put into dry storage after a wet day of fishing.