Lewmar Pro-Sport 550 Windlass Lewmars Pro-Sport ropechain windlass is designed as an economical package for rope and chain applications, without compromise to quality or performance. Pro-Sport is designed around a highly efficient spur gearbox, using smaller, more powerful permanent magnet motors. Its DIY-ready and easy to install. Its rugged aluminum center case and durable composite side covers make Pro-Sport the perfect choice. Complete with push-button control, anchoring has never been easie