Tamiya 94389 AO-1011 620 Bearing set - low friction upgrade for Mini 4WD  [94389]

Snapshot of Tamiya 94389 AO-1011 620 Bearing set

The Tamiya 94389 AO-1011 620 Bearing provides Mini 4WD builders with a reliable way to reduce rotational drag. Lightweight and precisely made, these bearings help wheels turn with less resistance, making them a sensible option for club racers and workshop tuners.

Where they fit and what they do

These 620 bearings are suitable for a wide range of Mini 4WD chassis that accept standard 620 sizing. By lowering friction between axle and wheel hub, they help to preserve axle integrity and improve the gearbox-to-wheel energy transfer.

Practical track gains

Installing the Tamiya 94389 bearings often results in smoother starts and steadier mid-corner speed, which can be especially beneficial on twisty circuits. Consistent rolling helps reduce lap time variability over multiple runs.