Long progressive springs are soft at the beginning of the compression but become harder since the springtime is compressed more at the center, with greatest hardness at the end. Marked with stripes for easy recognition. Set of 2. Fit rear. Fit XB808 and XB9. Ultimate high-performance racing springs provide extra precision tuning options for your XRAY model rushing car! Developed through considerable evaluation and racing experience, these sporting springs were designed and precision-crafted to have a more progressive rate than standard XRAY race springs. Once the car goes into the part the springtime is softer which generates more grip, but just the car inclines the springs have stiffer and a greater cornering rate is achievable.
Available as a set of springs to match the trunk the springs are separately calculated, controlled, inspected, and matched to give identical damping traits. Throughout the selection procedure, each springtime is compressed in a number of fine increments therefore the values are recorded. Then each spring is matched with another spring of identical faculties. XRAY goes the additional mile to make sure perfect springtime matches, giving your car the predictability and consistency you need to allow you to lead the pack.