Tamiya 3RACING M4WD-29/LB Ringless 9mm Aluminum Racing Rollers Light Blue  [M4WD-29/LB]

Technical Overview for 3RACING M4WD-29/LB

The Tamiya Mini 4WD 9mm Aluminum Ball Race Rollers are engineered as a high quality ringless option for racers focused on predictable roll behaviour. The light blue aluminium bodies and precision bearing elements support consistent guide interaction under load.

Engineering and Fitment Details

At 9mm diameter the rollers provide a balance between contact patch and minimal rotational inertia. This design reduces contact friction and contributes to stable lateral response through sweeping and tight sections. Compatibility spans common Mini 4WD chassis formats such as MS, MA, AR, and VS, allowing integration into competitive setups.

Performance and Setup Notes

For race tuning, use spacer stacks and mounting offsets to control roll-in angle and side wall timing. The lightweight aluminium construction helps maintain vehicle mass targets while improving the consistency of rebounds and lap rhythm.