The RACEOPT Progressive Dynamic Spring - High Response helps you balance flexibility and support for crisper handling. These springs are aimed at enthusiasts who adjust suspension settings to suit different courses and driving styles.
Rated between 2.5 and 3.1, the blue springs deliver a variable response that tightens as load increases. This progressive behaviour smooths transitions and reduces sudden changes in chassis attitude.
Using a 1.4mm wire thickness and matched top and bottom geometry, these springs are built to withstand repeated use while keeping consistent performance across all four units.
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