The 19mm ringless aluminum ball race rollers provide a clear performance benefit by lowering rotational friction and stabilising lateral movement. The gold anodised aluminium body reduces unsprung mass while keeping sufficient rigidity for repeated track use.
These rollers are compatible with standard Mini 4WD chassis types including MS, MA, AR and VS. For optimal results, verify spacer thickness and nut torque to maintain bearing preload without binding. Small spacer adjustments often yield significant handling gains in race setups.
In race conditions the reduced drag and improved stability translate to better corner entry and exit control, helping maintain higher average speed on technical courses. Use these rollers as part of a broader tuning plan that includes weight distribution, tyre choice and gearing for balanced performance.