The Tamiya 94859 JR 13mm Aluminum Ball Race Rollers are a compact performance upgrade that cut rolling resistance and offer reliable spin thanks to integrated 520 ball bearings. Constructed from anodised aluminum, they resist wear while maintaining smooth contact with track guides. These rollers are suitable for use at either end of the car to balance speed and control.
The blue finish adds a neat visual touch for both Mini 4WD PRO machines and standard Mini 4WD models. They are a practical choice for hobbyists wanting cleaner lines and steadier lap times without complex modification.
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