Mini 4WD 19mm ringless aluminium ball-race roller upgrade M4WD-32/GO by 3Racing  [M4WD-32/GO]

M4WD-32/GO is a compact 19mm ringless aluminium ball-race roller finished in gold anodize. The ringless rim reduces protruding edge contact so rollers sit lower beside guide rails. The aluminium barrel offers better structural stability than typical plastic rollers while the internal ball setup reduces rotation drag.

Designed to mount in standard 19mm positions on Mini 4WD chassis. Use the correct 3mm or 4mm shafts and choose spacers to maintain alignment and avoid side load. Suitable as an aftermarket choice for MA, MS, AR, FM-A and Super-II platforms where 19mm rollers are appropriate.

The gold anodising helps keep a clean appearance on display cars and provides some resistance to visible scuffing. This item is the roller only and does not include motors, gears or chassis parts.