Featuring a host of refinements and upgrades, the legendary line of 5000 Series Bass Drum Pedals features a choice of Accelerator (offset), Turbo (center) Double Chain and Sprocket or classic Nylon Strap drive systems. Along with aluminum hex shafts, pedal plates and linkages, dual side adjusting hoop clamp, 101 two-way beater and built in spurs, these pedals can be customized to fit the needs of any player. The Accelerator (AD3) Drive System offers an eccentric motion that creates an indirect relationship between the sprocket and the footboard, increasing the velocity of the pedal by shortening the length of the stroke. It is recommended for situations that require increased speed and sensitivity. The Turbo (TD3) Concentric Drive System maintains a direct relationship between the sprocket and the footboard to provide a solid, powerful, consistent feel and response. The flexibility and relaxed feel of DW's Nylon Strap (ND3) Drive System offers a classic balance and fast, fluid, floating response that continues to make it the favorite of many traditional and contemporary drummers.