Pound for pound, our composite shaft is stronger than steel. It flexes on impact and won't break, kink or corrode. That's why we're confident enough to make it the only trolling motor shaft that's guaranteed for life. Galvanic corrosion occurs when two dissimilar metals come into electrical contact through saltwater. Riptide fights back with a sacrificial zinc anode, a composite shaft and properly balanced materials that are close in electrical potential. The result is a motor that's completely protected from saltwater's destructive forces.