DW DWCP5000AD4 Accelerator Single Bass Pedal. Belt Drive Double Pedal. An industry standard gets even better. We’ve reengineered the pedal that established our reputation for innovation and quality. Because innovation is part of our DNA we thought it was time for some major improvements. Most notably, the toe clamp. The 5000 needed more gripping strength, providing a stronger connection between the drummer and kick drum. So, we developed the Tri-Pivot Toe Clamp U. Three independent 360 degree, rotating rubber pads firmly pinch almost any diameter and thickness bass drum counter hoop from the top and the bottom, with zero slippage. Add to that a new textured rubber grip pad on the base plate and we think you’ll agree that there’s never been a better system for attaching a pedal to a bass drum. Last, but certainly not least, we wanted to improve on the smoothness and feel of the 5000, if that was even possible. To accomplish this, we added a Dual Bearing Spring Rocker, making the 5000 quicker and more responsive. The Accelerator (AD4) 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. Tri-Pivot Toe Clamp U. Delta II Ball Bearing Hinge U. Pineville Music was started in 2016 with the goal of providing the best gear for every musician. We pride ourselves on stocking products that are difficult to find elsewhere at a great price. Please message us if you have any questions or would like any additional product information.