The Factory Pro FP-O-TCP006 set provides a matched 1mm and 2mm brace to reinforce the front bulkhead of a Tamiya TRF421. Fitting these reduces unwanted flex where the chassis wants it least.
By tightening the front section, the car responds with firmer turn-in and more predictable balance under braking, making setup changes more obvious on different surfaces.
The braces are shaped to suit the TRF421 layout and typically install without major trimming, letting drivers add stiffness during a routine maintenance session.
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