PDP Concept Series Double Pedal Chain (PDDPCO). Designed in California by Drum Workshop for optimal playability, the Concept Series Double Pedal is a boutique-inspired machine that’s quick and responsive. The pedal’s design is outfitted with a dual chain concentric drive system, smooth cast extended footboard with integrated needle bearing hinge, single post auxiliary pedal, telescoping linkage with universal joints, and an offset toe clamp. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. Meinl Pure Alloy Custom 20 Medium Thin Ride. Meinl Byzance Foundry Reserve 24 Ride. Vic Firth Corpsmaster® Signature Snare — Colin McNutt. DW Collector’s 6.5×14 Maple Snare – High Gloss over Monkey Pod #2.