For routine upkeep or race day prep, the Tamiya 51645 TRF420 K-Parts SP-1645 Spare Parts bearing holders are a practical replacement. They are designed specifically for the TRF420 chassis to keep rotational parts turning freely and reduce premature wear.
The holders are engineered to match TRF420 mounting points so hobbyists can fit them without extensive mods. Take care with bearing seating during installation to ensure true running and to avoid binding under load.
Genuine Tamiya parts maintain the car's original geometry and durability. Choosing these bearing holders helps preserve the chassis behaviour you expect from a TRF420 and reduces the chance of unexpected failures during hard running.
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