The Tamiya 15259 DR Hex Hole Ball Bearing Set is a practical upgrade for Mini 4WD builders who want to cut drivetrain friction and get smoother shaft spin. By lowering resistance at the drive shafts, these bearings help the model run cleaner and can contribute to better speed and more consistent lap times for Dangun Racers.
Manufactured to integrate with common Mini 4WD assemblies, the bearings ease mechanical load on the motor and help the power transfer run more efficiently. Whether you are tuning for club races or refining a display model, fitting these bearings can improve on-track behaviour and overall drivability.
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