With the electric EF 90 reefing systems, trend-setting design and peak efficiency are combined in an overall high-capacity system. They are designed for yachts of approx. 36-70 foot in length and for wire forestays from 8 to 16 mm in diameter (alternatively rods -12 to -76). A newly developed gear technology and sophisticated bearing technology lend the smooth running EF 90 an unprecedented functionality. With respect to construction, the self-braking worm gear is nearly maintenance free. Comforting to know that in emergency situations it is easy to switch over to manual operation. In order to guarantee secure and simple operation, loads from the sail are completely absorbed and hence cannot affect the winch handle. The integrated length adjustment is likewise easy to operate and works even with tacked sail. The technical equipment and the exclusive use of top value materials make this an overall valuable and durable system, tailored to the requirements of ambitious yachtsmen. The system sizes EF90-2 and EF90-3 guarantee high performance and top efficiency in simple and comfortable operation on 36-foot boats as well as larger yachts.