Double-chain double bass drum pedal from Iron Cobra 600 series that features a revolutionary changeable Duo Glide cam that allows for choosing the pedal action based on the personal preference. It can be easily converted between a round "Rolling Glide" sprocket for a smooth, linear stroke, and an offset "Power Glide" sprocket for increased power and speed. The double chain drive delivers smooth and accurate motion, while the newly designed hinge provides more precise motion and increased durability. The Speedo Ring eliminates friction by replacing traditional nylon rocker cam and the ParaClamp helps to keep the pedal flat on the floor. Additionally, the Spring Tight keeps spring from twisting.