If you want to sharpen your suspension setup, the XRAY 368275 Progressive Rear Spring Set is built for big bore shocks and provides a changing spring rate that responds as you turn. These springs help the rear end find traction early in the corner and then firm up to carry speed through the exit.
The core benefit of these progressive springs is how they shift stiffness under load. Around initial turn-in they act softer to boost traction and steering feel, and as chassis roll increases the rate ramps up to preserve stability and speed. That change in behaviour gives drivers more predictable control when pushing hard.
Each pair of XRAY springs is carefully measured and matched so both sides share identical length and response. This precise matching reduces setup guesswork and keeps handling consistent between runs.
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