19mm Ringless Aluminium Race Roller for Mini 4WD M4WD-40/GO by 3Racing  [M4WD-40/GO]

19mm anodized gold ringless race roller M4WD-40/GO

The 19mm aluminium ball race roller M4WD-40/GO offers a ringless construction and a lightweight profile in a gold anodized finish, built for Mini 4WD tuners. The design removes the external ring to lower rotational inertia while the internal ball arrangement provides the rolling interface used on standard mounts.

This roller matches common Mini 4WD chassis positions such as Super-II, MA and AR, though installation depends on the post diameter and spacer arrangement on your stay. Because the ringless profile alters contact with guard plates and low-friction tape, always check clearance during mock assembly.

During installation consider axle spacing, shim thickness and roller width relative to the front or rear stay. The lighter construction changes inertial behaviour versus ringed rollers, so apply it where reduced rotating mass is wanted without losing basic guiding function.

The part uses anodized aluminium for surface protection and looks. Verify fit with your current washers, bearings and screws before committing to permanent assembly.