Designed to complement the GTX series, the XRAY 358194 GT Progressive Spring Set softens spring rate relative to original GTX springs to increase traction and improve rear-end stability. Useful for racers and club drivers who need more predictable rear grip.
Each spring is measured and matched into pairs so you get the same free length and damping feel on both sides. That precision helps maintain balance across long runs and heats.
The variable coil spacing lets these springs respond gently at first then firm up as load increases, giving a broader tuning window for different surfaces and driving styles.
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