The TAMA Drums HP310L Speed Cobra 310 Bass Pedal was developed using the same design principles as the Speed Cobra 910 series. The extended footboard offers rapid acceleration and power with less physical effort. The Recessed Setting provides the perfect balance between the natural characteristics and motion of a chain drive pedal, and the lighter overall action of the Speed Cobra 310 series.TAMA Drums HP310L Speed Cobra 310 Bass Pedal Features:A specially designed long pedal board for the Speed Cobra series. By designing the footboard longer than Iron Cobra, it rapidly accelerates the power and speed of the beater stroke, with less physical effort than ever before. Additionally, the smoother playing surface reduces friction between your foot and the footboard, allowing more precise control and flexibility.To continuously play fast passages, your pedal action has to feel light for less stress and muscle fatigue. The Recessed Setting position makes it possible to achieve a perfect balance between the natural playing feel of the Chain Drive's motion and lighter action. By changing the bearing's framework structure, this produces less stress on the FASTBALL bearing and makes a huge difference in the total feel. As a result, about 20% less exertion is required to produce the same result in power and feel found in existing current models.TAMA adopted the true round-shaped "Lite Sprocket" for natural feel and smooth action. Compared with Iron Cobra's sprocket, this version decreases its weight by 40%. It revolves naturally and smoothly, providing a lighter feel.The Speed Cobra 310 series features the same durable double chain drive as the Speed Cobra 910 series. This double chain drive offers smooth and accurate motion in any situation.The recently designed hinge uses a tough, cylindrical brass sleeve to protect the hinge pin from damage or undue pressure, assuring fluid motion and increased durability.You won't find adjustable beater/footboard angles on most pedals in this price range. But the HP310LSW comes standard with an angle adjustment system linked to the footboard angle.Spring Tension Adjustment - Inspired by Iron Cobra 900 series drum pedals' "Spring Tight" feature, this specially shaped nut prevents the spring unit from loosening.Twisting springs severely reduce pedal smoothness. Spring Tight,a half-moon-shaped spring tension rod, keeps the spring from twisting so there's never any loss of power transmission. Tama HP310L Speed Cobra 310 Series Bass Drum Pedal.