Tamiya 3RACING M4WD-31/PK 17mm Pink Aluminium Ringless Ball Race Rollers  [M4WD-31/PK]

Tamiya Mini 4WD 17mm Aluminum Ball -Race Rollers ( Ringless )(Pink) - 3RACING M4WD-31/PK
Price:
USD$6.30
Brand:
3Racing
Model:
M4WD-31/PK
Condition:
Brand New
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Technical overview for Tamiya Mini 4WD 17mm Race Rollers

The 3RACING M4WD-31/PK 17mm aluminum ball race rollers in pink are engineered for precise cornering control and consistent bearing performance. The ringless aluminium bodies reduce rotational inertia while maintaining structural rigidity expected in tuned race parts.

Performance attributes and chassis compatibility

These rollers minimise lateral friction between roller and track wall to improve steering fidelity on technical sections. They integrate with common Tamiya chassis types such as MS, MA and AR, enabling targeted setup changes without major chassis modification.

Setup guidance and race impact

When tuning, use these rollers to refine entry and mid corner stability; their lower mass assists acceleration and reduces deceleration through turns. Check bearing pre-load and spacer alignment during installation to optimise free spin and avoid unwanted lateral slop.

Verify axial play and bearing preload, confirm roller axis alignment with the chassis, and ensure there is no contact with bodywork or stabilisers. Small corrections improve repeatability.
Their reduced mass shifts the balance toward quicker rotational response, so you may need to adjust spring rates, weight distribution or tyre selection to retain overall stability.
Inspect bearings after each event, clean contact surfaces, and use a light lubricant to preserve ball race smoothness. Replace bearings if play increases to maintain lap time consistency.