PDP Concept Double Chain Drive Double Bass Drum Pedal – PDDPCO. Designed in California by DW 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. Concentric Cam and Dual-Chain Drive. Single-Post Frame with Spring Rocker. Solid Base Plate. XF Extended Footboard with Needle Bearing Hinge. WE ARE AN AUTHORIZED PDP DEALER AND HAVE MANY OTHER PDP ITEMS IN STOCK! We are an authorized FIVE STAR SHOP! Our Goal is to give you the best customer service and best price out there! We insure all of our packages! Some items take more time to pack and make sure all is safe and sound. Some items can take up to 4 days to pack well. Items must be unused and in original packaging unless otherwise discussed with the drum shop.