Mini 4WD Compact 13mm Ringless Aluminium Ball Rollers - M4WD-30/GO by 3Racing  [M4WD-30/GO]

Compact 13mm ringless aluminium rollers for Mini 4WD

A practical overview aimed at hobbyists who tune Mini 4WD rigs. These 13mm aluminium ball race rollers feature a ringless bearing style and a turned aluminium body in a gold finish. They serve as replacement or upgrade rollers compatible with popular performance chassis such as Super-II and MA, where small rollers are used to sharpen cornering contact and improve chassis poise.

The ringless construction trims flange bulk, which helps when mounting in narrow stays and reduces rubbing on low-clearance builds. The machined aluminium sleeve keeps size consistent across the set, and the internal ball layout lowers lateral friction compared to simple plastic rollers.

For fitting, check axle clearance and spacer stack on your rail, and verify the body mounting points do not touch the roller edge. For upkeep, wipe bearings with a light solvent and apply minimal thin lubricant; avoid heavy grease that attracts dust.

Compatibility tip: these rollers are supplied for use on Tamiya Mini 4WD platforms where a 13mm roller is suitable. Always confirm stay fitment and stabiliser clearance before permanent installation.