The Tamiya 3454921 Blue Upper Bulkhead is an aluminium upgrade made for the TRF418 chassis. It blends a distinct blue anodised finish with added stiffness to help the car hold its setup under race stress.
Precision-machined aluminium reduces unwanted chassis movement and helps the suspension behave more predictably. That gives drivers steadier turn-in and improved mid-corner stability.
Serious hobbyists will value how this blue bulkhead supports nuanced setup changes and refines front-end behaviour for tighter lap times on technical layouts.
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