Mini 4WD Double 8-9mm Aluminum Roller Set M4WD-33/RE (red) by 3Racing  [M4WD-33/RE]

Double 8-9mm aluminum rollers for 1/32 Mini 4WD

Designed as compact spares for experienced Mini 4WD hobbyists, these double aluminum rollers suit 1/32-scale builds needing low-mass, wear-resistant rolling parts. The pair uses an 8-9mm diameter range and a red anodized finish to reduce surface wear compared with untreated metal while keeping weight minimal.

Fitment depends on shaft diameter and local mounting clearances on common 4WD chassis. Check your axle bore, spacer stack, and any custom chassis modifications before fitting. The rollers are compatible with standard roller shafts and common two-piece mounting setups found on Super-II, MA, MS, AR and similar performance chassis; confirm clearance on scale-style or heavily modified bodies.

For installation by experienced builders: verify shaft alignment and side clearance, apply light lubrication where bearings are not used, and avoid overtorquing fasteners that can deform the roller or bracket. Inspect the anodize for chips after fitting and replace any roller that shows structural damage. These parts serve as replacement rollers or for custom performance setups rather than generic kit upgrades.

Maintenance tips: clean and inspect periodically to spot wear or play at the shaft interface. If you use small bearings or bushings, ensure they match your tolerance needs and swap them for matched parts when required.