Super-II/MA Friendly 13mm Ringless Aluminium Ball Rollers - M4WD-30/GO by 3Racing  [M4WD-30/GO]

Low-profile 13mm ringless rollers for performance Mini 4WD

A short technical note for club racers and hobby tuners. These 13mm ringless aluminium ball race rollers combine a ringless bearing layout with a turned aluminium outer in gold. They can replace stock rollers on 1/32 Mini 4WD cars built on common performance platforms like Super-II and MA to tighten cornering clearance and improve chassis stability.

The ringless approach reduces external flange bulk so rollers fit better in narrow stays and are less likely to catch on low bodies. The machined aluminium shell ensures uniform dimensions across the set, and the ball-bearing arrangement lowers side-to-side friction versus simple plastic rollers.

Fitment notes: measure axle clearance and spacer thickness on your rail, and check for any body mount contact. For routine care, use a solvent wipe to remove dirt and a light, low-viscosity lube on the bearing; avoid heavy greases that attract sand and dust.

Compatibility reminder: these rollers are intended for Tamiya Mini 4WD use where 13mm rollers are acceptable. Always test fit in your stays and with stabiliser hardware before committing to race use.