Mini 4WD Double Rollers Aluminium 12-13mm M4WD-34/LB by 3Racing  [M4WD-34/LB]

Aluminium double rollers in light blue M4WD-34/LB for Mini 4WD

These double aluminium rollers are aimed at seasoned Mini 4WD hobbyists who service and tune 1/32 scale 4WD cars. Machined from aluminium and anodised light blue, the pair fits 12-13mm outer roller diameters and suits compact mounting arrangements.

They work with standard Tamiya Mini 4WD mounting points that accept 12-13mm double rollers. This item is a replacement roller assembly only; it is not a chassis or drivetrain component, so confirm shaft size, spacer stack and bearing specification before installing on Super-II, MA, MS or other race-oriented frames.

Fitment tips: check for bearing play and shaft alignment, use suitable locking hardware where metal-to-metal fasteners are used, and ensure roller height does not interfere with bumpers or stabilisers. Take care not to overtighten mounting screws to avoid thread or roller deformation.

Upkeep: clear debris and re-lubricate bearings routinely, inspect for edge wear after abrasive track use, and replace both rollers simultaneously to keep handling consistent. The design focuses on robust rolling performance rather than aerodynamic or weight benefits.