Mini 4WD Double Roller Upgrade 8-9mm M4WD-33/GO by 3Racing  [M4WD-33/GO]

Tamiya Mini 4WD Double Aluminum Rollers ( 8-9mm )(Golden) - 3RACING M4WD-33/GO
Price:
USD$7.50
Brand:
3Racing
Model:
M4WD-33/GO
Condition:
Brand New
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M4WD-33/GO precision double rollers for Mini 4WD applications

This precision double-roller set consists of two concentric 8-9mm aluminium rollers with a gold anodised surface. Supplied as an aftermarket replacement, the components suit Mini 4WD chassis designed for 8-9mm roller assemblies and emphasise consistent fit and durable material selection.

Intended for experienced hobbyists and tuners: these aluminium rollers replace softer factory parts and provide a stable contact face where double rollers are permitted by class rules. Verify chassis spacing and side stay clearance before fitting since the stacked rollers increase effective width and can affect stabiliser placement.

Installation follows standard roller mounting technique. Use shafts with the correct diameter, fit low-friction bearings as required, torque fasteners evenly to avoid distorting the aluminium, and schedule routine inspections for wear, burrs, and bearing condition.

What shaft tolerance is recommended for these rollers?

Use shafts within nominal 8-9mm tolerance and ensure they are straight and free of pitting. Correct shaft concentricity minimises wobble and extends bearing life.

Are specific bearings advised for best results?

Low-friction sealed bearings sized for 8-9mm applications are recommended. Select bearings that allow free rotation without excess lateral play to maintain consistent roller tracking.

How to prevent distortion when tightening?

Tighten fittings incrementally and check rotation after each adjustment. Use torque control where possible and avoid point-loading that can bend thin aluminium walls.

Recommended inspection routine?

Inspect rollers for burrs, check bearing seating, verify spacer alignment, and confirm that the assembly remains free-running after several test laps or runs.

Any surface care tips for anodised rollers?

Keep contact zones clean from grit, avoid abrasive cleaning agents, and use light polishing to remove minor surface imperfections without wearing through the anodised layer.