Super-II MA MS AR Compatible Mini 4WD Double Aluminum Rollers 12-13mm M4WD-34/GO for racing chassis by 3Racing  [M4WD-34/GO]

Concentric double rollers tailored for Mini 4WD performance frames

These double aluminum rollers are offered as aftermarket spare parts for modelers and racers focused on Mini 4WD performance. The pair is finished in gold anodize and designed for locations where compact, low-friction guide rollers are required on common racing frames.

The text below concentrates on fitment, material performance and routine upkeep rather than assembly instructions. They suit Mini 4WD chassis such as Super-II, MA, MS and AR; final fitting will depend on the roller posts and any adapters you use.

Aluminum plus anodizing improves surface hardness and corrosion resistance, yet mating posts and bearing interfaces still need regular checks to prevent fretting or asymmetric wear. Use appropriate washers and spacer stacks to preserve lateral clearance and avoid binding against bodywork or track guides.

As spare parts for collectors these rollers preserve the look of the car without altering structural layout. For competitive tuners they offer a compact alternative when changing roller positions, bearing types or cornering setups for different track profiles.