For hobbyists aiming for tighter handling, the Serpent SER401764 Red Shock Springs deliver a steady C=6.3 compression rate matched to the 4X EVO. They help retain consistent damping through fast straights and aggressive turns.
These red springs are engineered to sharpen steering response and reduce mid-corner wallow. Whether you're on smooth club tracks or more broken surfaces, they support a predictable ride height and improved control. Their direct compatibility with the 4X EVO chassis keeps swaps quick during setup sessions.
Installation is simple when shock bodies and shafts are clean and free of grime. Fit the springs concentrically and cycle the shocks to confirm smooth travel. Check spring tension after hard runs and replace if coils show permanent sag or inconsistent rate.
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