Drum Workshop 5000 Series Single Pedal - TD4 Turbo CamFeaturing a host of refinements and upgrades, the legendary line of 5000 Series bass drum pedals still features a choice of drive systems, aluminum hex shafts, pedal plates and linkages, 101 two way beater, and built in spurs. These pedals can be customized to fit the needs of any player. The Turbo (TD4) concentric drive system maintains a direct relationship between the sprocket and the footboard to provide a solid, powerful, consistent feel and