PDP PDDPCO Concept Series Double Pedal (Double Chain)The Concept Series Chain Drive Double Pedal represents the pinnacle of PDP and DW's exhaustive artist research. Feel, power, speed, response it's all here in this precision double pedal. The PDDPCOs twin concentric cams are driven by dual chains for an ultra modern fluid response underfoot. Thanks to the PDDPCOs split shaft design, you get a totally independent response from both sides of the pedal. So, whether you're playing machine gun doubles or