Tamiya M03/M03L/M04M/FF02 Precision Ball Bearing Set (2RS) M04M-05 by 3Racing  [M04M-05]

Kit overview and purpose

This bearing set is supplied for Tamiya M03, M03L, M04M and FF02 on-road platforms and contains sealed 2RS bearings intended to replace worn factory items. The seals retain lubrication and exclude contaminants, restoring smoother rotation in wheels, diffs and rotating shafts.

Install when you experience increased drivetrain drag, noisy hubs or inconsistent wheel spin. Upgrading bearings reduces binding and helps stabilise rolling behaviour, which is useful when fine-tuning balance for circuit or street driving.

Fitting guidance: bearings are usually pressed into hubs, carriers and gearbox bores. Align each bearing squarely and use steady, even pressure when pressing; avoid levering against the seal. Confirm free rotation and check endplay after installation.

Maintenance advice: sealed 2RS bearings lower maintenance needs compared with open bearings, but check periodically for roughness, play or grease leakage and replace any units showing wear to preserve drivetrain efficiency.