Tamiya 15475 JR Mini 4WD 13mm Roller Ball Bearings Set II - 2 pack upgrade  [15475]

Tamiya 15475 bearing set - quick rundown

The Tamiya 15475 Roller Ball Bearings Set II is aimed at Mini 4WD tuners who want cleaner roll and steadier handling. This two-piece set contains 13mm diameter steel roller bearings built to smooth wheel rotation and give better control through chicanes and straights. The solid steel design delivers dependable service across regular club use.

Compatibility and track use

These roller bearings reduce friction at wheel hubs and boost drivetrain efficiency, letting your model keep momentum with less drag. Their common sizing makes them adaptable across many Mini 4WD chassis layouts, offering a simple performance tweak for racers focused on lap consistency.

Practical impact on wear and maintenance

Fitting the Tamiya 15475 bearings can lower component wear by cutting contact friction, which helps parts last longer between rebuilds. The improvement in rolling smoothness also reduces stress on the motor and gearing over repeated runs.