The Serpent 401711 Purple Springs are a firm C8.4 option for the 4-X chassis, aimed at drivers chasing more precise steering and consistent mid corner behaviour. Their purple finish helps with quick identification during setup changes and spares organisation.
A C8.4 spring rate tightens body control and reduces roll, giving a more direct feel through turns. This makes it easier to set up predictable balance when adjusting shock oil, pistons and ride height.
These springs are compatible with the 4-X chassis and are appropriate for competitive club racing and focused practice sessions. Choose them when you want a firmer baseline to tune damping and anti-roll settings around.
Mix and match Serpent spring rates to tune the car for different track surfaces. Complementary options include Spring White C4.4, Spring Yellow C4.9 and Spring Green C9.5 to alter front to rear balance or overall stiffness.
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