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

13mm ringless aluminum ball rollers for tight Mini 4WD setups

A focused look at a compact roller option aimed at experienced Mini 4WD builders. These 13mm aluminum ball race rollers use a ringless bearing format and a machined aluminum shell finished in gold. They are offered as replacement or upgrade rollers for 1/32 Mini 4WD projects compatible with common performance platforms such as Super-II and MA, where small-diameter rollers help refine cornering contact and chassis balance.

The ringless layout reduces outer flange bulk, simplifying fit in narrow roller stays and lowering the chance of interference on low-clearance cars. The machined aluminum body keeps dimensions consistent part to part, while the internal ball arrangement reduces lateral drag compared with basic plastic rollers.

Installation tips include checking axle clearance and spacer thickness along your chassis rail, and ensuring no body mounts contact the roller edge during full travel. For care, use a light solvent wipe and a small amount of thin lubricant on the bearing area; avoid heavy greases that trap dust.

Compatibility note: these rollers are intended for use on Tamiya Mini 4WD systems where a 13mm diameter is acceptable. Confirm fit on your roller stays and any stabiliser hardware before final assembly.