This knuckle arm set suits TAMIYA Hornet, Grasshopper, Fast Attack, Wild One, F104 and F103 chassis, acting as a direct aluminium replacement for the original front uprights. Precision machining and a light blue anodised finish deliver a stiff mounting for steering links while keeping a factory-alike visual.
Installation notes: the uprights mount to the same points as the OEM parts, so disassemble the front suspension and steering to swap them. Verify the steering ball stud orientation and thread engagement, inspect wheel hexes, and reuse factory hardware unless wear is observed. Set fastener torque to your chassis preference and confirm full steering range before driving.
Setup role: aluminium uprights limit pivot flex and can make steering input feel more immediate. After fitting you might need to tweak toe or link lengths to recover your ideal handling balance.
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