The 3Racing SAK-F103 Graphite Upper Deck is a direct-fit upgrade for the Sakura FF21 chassis that increases torsional rigidity to improve handling. Crafted from durable graphite, it reduces flex while keeping the car light and responsive.
Graphite provides a combination of stiffness and low weight that improves steering precision and helps suspension components behave more predictably. Swapping to a graphite top deck is a common tuning step for drivers chasing consistency.
Fitting this upper deck tightens the chassis feel, aiding corner entry and stability under acceleration. It suits racers who want a solid, durable upgrade that complements suspension setup work.
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