The patent pending APEX Pedal Drive is a hands-free, pedal-powered system. The APEX has a 10:1 gear ratio for smooth, efficient pedaling as well as wide pedal foot platform with comfortable straps, a clear viewing port-hole, no-touch forward and reverse, and a spring-loaded, kick-up rudder to prevent damage. Compatible with Rackham Aero 12'4? Inflatable Paddle Boards and select LONO Aero Inflatable Kayaks.