Features Mechanical advantage of additional gears allows more force to be hauled in easierreducing winching effort by 50%. Automatic--extra power engages as soon as load is sensed on drum. Depowering is a simple as reversing winch handle. Eliminates need to upgrade to an electric winch. All winches are self-tailing. Available in 3 sizes (40, 46, 52). Black hard anodized aluminum. Sized to retrofit most standard winches. Corrosion-proof components. Easy to maintain. 5-year warranty.   The Trimmers automatic four-speed gearing mechanism provides additional winching power when you need it most. Changing gear is simple. When too much pressure builds up on the winch han- dle, just reverse the direction and the next gear is engaged. Once the line pressure is off, the winch reverts to the most suitable gearing for the next time you winch. Its fast and very effective. The ultra-power gear reduces effort by more than 50% whilst doubling the torque. This means that with a Pont