The YR-04 is a graphite lower brace intended for 1/10 scale formula cars and specifically matched to the YR-10F chassis. It serves to stiffen the lower chassis section and help fine-tune handling on smooth, high-traction courses used in formula-style RC events.
Installation follows the standard YR-10F procedure: remove the factory lower brace, locate the YR-04 in the original position, and fasten with the existing mounting points and hardware. No special tools or alterations are generally required for a stock YR-10F chassis.
Tuning brief: a stiffer lower brace shifts roll and pitch behaviour; the YR-04 is designed to offer a predictable uplift in lateral stiffness without affecting suspension geometry. Adjust springs, dampers and anti-roll components as part of a complete setup approach.
Compatible chassis: YR-10F only. Designed specifically to match the standard mounting layout of the YR-10F 1/10 formula platform.
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