To improve the rear balance of your car, the XRAY 368275 Progressive Rear Spring Set fits big bore shocks and provides a variable rate that adapts through cornering phases. The result is improved bite on turn-in and controlled support through roll.
These springs give a softer initial rate to increase traction, then progressively stiffen under higher load to keep the chassis stable at speed. That progression helps maintain momentum without compromising control.
Each set is carefully inspected and matched so both springs have identical length and feel, helping you recreate setups reliably across sessions.
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