The XRAY 308264 Progressive 4S Spring Set helps control chassis movement by offering a progressive response as the suspension compresses. Sized at 20mm for SLP shocks, these springs help preserve traction and corner speed under load.
In light compression the springs behave like a C2.5 to aid front-end bite, then move toward a C2.8 feeling as the car leans, providing a stable platform for maintaining speed through the middle of the corner.
Pairs are hand measured and matched to ensure consistent lengths and damping traits, reducing surprises when you are tuning and allowing more reliable comparisons between setup changes.
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