Designed for Mini 4WD enthusiasts, these washboard inserts bring extra variety to circuit laps. Debuted during Japan's 2013 Mini 4WD Cup, the pieces are intended to introduce measured airtime and test handling consistency.
The profile generates a light jump effect that alters car dynamics over consecutive bumps. With two heights included, 5mm and 10mm, you can experiment with different intensities to match tyres, gearing and body setup.
Installation is straightforward with supplied fixings for secure mounting to existing track panels. They are easy to move and reconfigure, letting you fine tune difficulty between practice runs.
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