For precise suspension tweaks, the Tamiya 53440 On-Road Hard Spring Set supplies four pairs of colour-coded springs that suit a variety of track conditions. The set helps drivers refine balance and responsiveness.
The eight springs are separated into soft, medium, stiff and extra stiff rates using red, yellow, blue and white colours. This visual system speeds up setup changes so you can test different rates without guesswork.
Designed for many on-road chassis, these springs measure 26.3mm long by 13.4mm in diameter and work with most standard shock assemblies. Fitting is straightforward and does not normally require specialist equipment.
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