From DW:
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.S. Patent No. 8330032). 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 original DW 5000 pedal changed drumming forever. Its feel and response became a favorite of the world’s top drummers shortly after its release nearly four decades ago. Since that time, the 5000 has been modernized to be even more steady and reliable, but the unmistakable playability of a single chain and sprocket drive system remains the favorite of many pedal aficionados. To that end, we offer the 5000AH4, a single chain Accelerator cam model complete with the original retro5000 footboard shape. The original, only better.