Swift Springs Coilover Springs Helper Springs ID 3.0-Inch 250 lbs/inch | H030-040-250

As you might know, United States are the largest racer populated country in the world. Through our experiences from extensive testing in world class racing in Europe and Asia, we have great confidence that we can provide the same results in the US. Swift specifically designed a standard measurement race springs to accommodate American race industries including oval track racing, and drag racing, and offroad racing. By knowing the main characteristics that American racer demands, we designed and engineered the standard measurement springs based on data that we had collected through racer