The 3Racing Sakura M4 Fiber Upper Deck, model SAK-M4S39, reinforces the Sakura M4 chassis for better on-track stability. Made from a resilient fiber material, it helps limit flex under load and supports more consistent handling during repeated laps.
This part increases chassis rigidity in key areas to improve cornering precision and mid-corner stability. Its light construction avoids compromising acceleration or steering feel, making it a practical upgrade for club racers and hobbyists tuning their cars.
Specifically produced for the 3Racing Sakura M4 family, the SAK-M4S39 slots into the existing chassis layout with minimal alteration. Typical RC hand tools are enough to complete the swap.
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