Tamiya Mini 4WD 12-13mm Double Aluminium Roller Upgrade M4WD-34/PK by 3Racing  [M4WD-34/PK]

12-13mm double aluminium rollers M4WD-34/PK for Mini 4WD

The M4WD-34/PK double rollers are machined aluminium components with an anodized pink finish, intended as a robust replacement or upgrade for Mini 4WD cars that accept 12-13mm roller bores. The paired-roller arrangement helps control body movement during cornering while offering the look of aluminium upgrades.

These rollers work with many Tamiya Mini 4WD mounting patterns that accept 12mm to 13mm bores; check stay hole spacing, spacer clearance and the screw types on your car prior to purchase. They can be fitted with sealed or open bearings depending on your axle and shaft setup. This item is an accessory component, not a complete chassis or kit.

On installation, verify shaft diameter tolerances and spacer thickness to avoid rubbing the body. Choose the correct screw or locknut to secure the roller without binding. Inspect aluminium-to-steel contact points for fretting if you run steel spacers or hardened shafts, and clean the anodized surface with a soft brush to maintain its appearance.

For hobbyists who collect or display builds, the pink anodizing keeps a consistent visual with other aluminium parts. Builders should double-check bearing and shaft compatibility before committing to a purchase. The roller set replaces worn plastic rollers or complements existing aluminium upgrade sets.