The 3Racing SAK-U418 rear shock tower uses 3.5mm graphite to reduce rear chassis flex on the Sakura Ultimate. This stiffer mounting point helps the suspension work more consistently under load for improved lap times.
Designed for the Sakura Ultimate platform, the SAK-U418 delivers a favourable balance between low weight and increased stiffness. Drivers will notice steadier rear behaviour and more direct steering input recovery.
The SAK-U418 fits the Sakura Ultimate series with minimal effort and replaces the factory rear tower cleanly. It is a practical upgrade for racers and enthusiasts who want a durable, track-ready rear mount.
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