Cane Creek's Double Barrel Air Shock has the adjustability you need to tailor rear suspension characteristics to your riding style, bike, and local trails. This high-volume air shock that feels like a coil has an extensive tuning range that includes high- and low-speed compression and high- and low-speed rebound. Even changing the spring rate curve is possible by adding or removing spacers in the air can. Where does the Double Barrel name come from? Cane Creek's Double Barrel technology circulates oil continuously through the valving to achieve highly controllable, independent damping for both compression and rebound strokes so the shock retains its plushness and sensitivity from the top to the bottom of the trail, no matter how long the descent. Whether you prefer progressive or linear, the Double Barrel can achieve your perfect suspension settings.