The 3Racing Sakura M4 Fiber Upper Deck, model SAK-M4S39, is made to firm up the Sakura M4 chassis where extra rigidity improves predictability. The fibre construction helps the car maintain composure through fast corners and during quick direction changes.
This upper deck provides targeted stiffness that reduces chassis flex while keeping weight low, so steering remains sharp and the car reacts reliably to setup tweaks. It suits drivers wanting consistent lap-to-lap performance.
Made specifically for the 3Racing Sakura M4 series, the SAK-M4S39 integrates with the stock mounting pattern and requires only standard RC tools for installation. Minimal adjustments are usually needed to complete the upgrade.
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