This quality system is completely manufactured from billet aircraft grade aluminum for utmost durability. Uni-Strut adjusts to most transom angles. Rudder can be adjusted in and out, and are designed to “kick-up” in the event of a solid strike, making severe damage unlikely. The rudder hinge pin is sleeved with Nylon bushings to eliminate possible metal/metal contact that can cause radio interference. This single rudder offset system is designed for boats from 40-50" when set up for competition use. We recommend our Dual rudder system for all sport/performance boats 46" or greater in length. A second rudder can be added.