Tamiya 3RACING M4WD-29/PK 9mm Pink Aluminium Ball Race Rollers  [M4WD-29/PK]

Technical Summary of 9mm Aluminium Rollers

The Tamiya Mini 4WD 9mm Aluminum Ball Race Rollers in pink are engineered to reduce lateral friction and promote consistent rail contact during cornering. Their ringless aluminium bodies make them a compact, race-oriented upgrade for tuned Mini 4WD chassis.

Design and Chassis Fitment

Constructed for stable rotation, these rollers are compatible with MS, MA, AR and VS chassis standards and integrate with common bearing and bushing arrangements. Their lightweight aluminium reduces unsprung mass while retaining structural integrity under repeated running.

On-Track Tuning Considerations

Use these rollers to adjust corner entry response and minimise speed loss through bends. They pair well with medium to high traction tyre compounds and motors calibrated for balanced acceleration and top speed.

Performance Upgrade Workflow

In a stepwise tuning strategy, fit these rollers early to set base handling, then iterate with tyre, gear and motor changes. They support predictable adjustments that are useful for race setup cycles and consistency testing.