The most popular performance trailer winches on the market! Already race-proven, Superwinch S-Series winches now have more powerful motors, an integrated sealed switching solenoid, and rugged new rubber hand-held remote. Other standard features include power IN and OUT, free-spooling drum, mechanical and dynamic braking, and roller fairlead. The fully enclosed housing helps keep the weather out. No wonder these winches are called"The Racer's Choice!"