Harken 40 Self-Tailing Performa Alum Winch, 2 Speed - 40.2STP40 Self Tailing Performa Winch 2 Speed All Performa winches feature sandblasted drums optimized for halyard and sheeting applications using small diameter, high tech line. Self tailing winches have narrow composite jaws to ensure superior holding power on small diameter line. The self tailing mechanism on the winch means that one crew member can quickly and easily trim or raise sails. Specifications Gear Ratio 1 2. 13 Gear Ratio 2 6. 28 Power Ratio 1