Mini 4WD 17mm Ringless Aluminium Rollers M4WD-31/PK Pink upgrade by 3Racing  [M4WD-31/PK]

17mm ringless aluminium ball rollers M4WD-31/PK in pink

These 17mm aluminium ball rollers suit 1/32 scale Mini 4WD models, offering ringless ball geometry for a compact running face. The anodised cups enhance surface hardness and wear resistance compared with simple paint finishes, which is useful for hobbyists focused on consistent lap times.

Confirm roller boss diameter and the host chassis mounting when fitting. These rollers are compatible with standard 17mm posts and most spacer and screw arrangements used on MA, MS, AR, FM-A, VS and Super-II platforms. Because they are light spares, check spacer stacks and screw engagement to keep proper clearance from stabilisers and side stays.

Routine upkeep includes inspecting the cup seating for wear and checking screw security. For long term storage of finished cars, remove exposed metal rollers or apply a light corrosion inhibitor to protect the anodised surface.