Tamiya 15344 JR DR 9mm Ball Bearings, Mini 4WD upgrade set (2 pcs.)  [15344]

Quick look at Tamiya 15344 JR DR 9mm Ball Bearings

The Tamiya 15344 JR DR 9mm Ball Bearings provide a simple, durable bearing option for Mini 4WD models. They are intended to reduce internal drag and help wheels rotate with less resistance for cleaner runs on the track.

How they work and where they fit

By replacing plain bushings or worn bearings with these 9mm units you reduce friction in the wheel assembly. Their size is compatible with many Mini 4WD chassis, so they are a practical upgrade for club racers and hobbyists alike.

On-track gains

These bearings improve rotational stability, which supports more predictable handling and can assist in achieving smoother lap times when combined with overall car setup adjustments.