The Tamiya Mini 4WD 13mm Aluminum Ball Race Rollers from 3RACING M4WD-30/GO are engineered to lower rotational resistance and stabilise cornering dynamics. Machined aluminium bodies keep mass down while offering the rigidity needed for precision tuning and repeatable lap times.
These 13mm units are designed to reduce bearing drag and enhance lateral stability during turn entry and exit. They are compatible with a broad range of Tamiya chassis platforms, including MS, MA, AR and VS, using standard roller mount interfaces.
Installers should check bearing preload and axle alignment to avoid side load that can negate gains. The ringless format reduces parasitic drag, aiding consistent speed through transitions and simplifying weight distribution choices for race setups.