Tamiya 94389 AO-1011 620 Bearings - compact low-drag pair for Mini 4WD  [94389]

Introduction to Tamiya 94389 AO-1011 620 bearings (pair)

The Tamiya 94389 AO-1011 620 Bearing is a practical upgrade for Mini 4WD models where rolling efficiency matters. These bearings are made to lower interface friction and help wheels spin with better consistency during practice and race sessions.

Compatibility and mechanical benefits

These 620 bearings are compatible with many Mini 4WD setups that accept standard bearing sizes. They reduce contact wear on axles and help the drivetrain run more smoothly, which can pass on small but meaningful performance improvements.

Race day effects and handling

Adding Tamiya 94389 bearings tends to produce crisper acceleration and steadier lap times, especially on sections that reward low rolling resistance. They are a straightforward performance part for builders tuning for reliability and speed.