The Tamiya 3451519 centre shaft is a precision replacement aimed at reducing unwanted movement in the TRF421 driveline. Its tighter tolerances help produce smoother torque delivery and steadier handling at speed.
Designed to suit the TRF421 architecture, this centre shaft improves drivetrain stability and helps keep gear engagement consistent under load, aiding repeatable lap times.
With straightforward compatibility, the Tamiya 3451519 fits into TRF421 projects with minimal fuss, enabling focus on setup refinements like gearing and suspension for racing conditions.
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