Tamiya Mini 4WD Double Aluminum 12-13mm Roller Set M4WD-34/PK by 3Racing  [M4WD-34/PK]

Low-profile double rollers M4WD-34/PK for Mini 4WD

The M4WD-34/PK is a compact double-roller assembly machined from aluminium and anodized in pink for a consistent look across aluminium upgrades. Paired rollers reduce lateral body movement at corner entries on Mini 4WD cars that accept 12-13mm bore rollers, making this set a practical spare or visual match for aluminium builds.

These rollers are compatible with many Tamiya Mini 4WD mounting patterns that use 12mm to 13mm roller bores; confirm your stay hole spacing, spacer clearance and screw types before fitting. You can fit sealed or open bearings depending on the axle and shaft hardware you have. Note that this item is an accessory part, not a complete kit.

When installing, check shaft diameter tolerance and spacer thickness so the roller does not contact the bodywork. Select screws or small locknuts that clear the roller inner face to avoid binding. Because the components are aluminium, inspect mating surfaces for fretting when using steel spacers or hardened shafts. Routine cleaning with a soft brush preserves the anodized finish for track or display.

For collectors the anodized pink finish offers a neat visual match with other aluminium accessories. Builders should confirm bearing type and shaft fit before purchase to avoid extra fitting work. This roller set is intended as a straightforward aluminium replacement for worn plastic rollers or to harmonise with existing aluminium upgrade parts.