This CNC-machined carbon upper deck is an aftermarket replacement for X4F 27 chassis layouts, crafted to let racers dial chassis flex and rotation. The split rear design keeps the deck narrow, easing fitment while opening up multiple screw-based flex options.
Manufactured from high-grade carbon fiber in the USA, the deck ships with 2 pcs rear mounting screws so you can bias compliance toward the back end. By moving screw locations the Multi-Flex approach changes torsional stiffness, altering traction and steering balance without modifying the suspension geometry.
Fit tips: the slim profile avoids interference with surrounding components on X4F 27 setups, and the split rear concentrates tuning changes at the rear to affect mid-corner rotation and rear traction exiting turns.
For constructors wanting refined rear tuning on X4F 27 cars, this deck offers a straightforward route to change rear flex and rotation through mounting choices while keeping weight low and finish precise.
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