The Kyosho MZW401 Front Spring Set gives MR-03 Mini-Z owners a simple way to tailor front suspension feel. The kit contains five clearly graded spring hardness options so you can adjust balance and responsiveness to suit different layouts or driving styles.
Having multiple spring rates on hand helps you respond to surface changes and grip levels. Choose softer springs for better mechanical grip on smooth surfaces and firmer springs when you need sharper turn-in and reduced body roll.
These springs are straightforward to replace, letting you test setups quickly between runs. Fast swaps mean less downtime and more time dialing in the MR-03 for consistent lap times.
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