The Tamiya 54584 Aluminum Main/Transmission Shaft Set is aimed at racers and hobbyists looking to tighten drivetrain performance on the TB-04. Replacing the factory shafts with these aluminium pieces can lower rotating inertia and maintain strength where it matters for consistent power flow from the motor.
Designed for the TB-04 chassis, the Tamiya 54584 components act as like-for-like replacements for the stock main and transmission shafts. When fitted carefully with good bearings and correct alignment, the set helps reduce drivetrain friction and extends service intervals for other drivetrain parts.
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