Tamiya 15437 - 13mm Aluminium Ball-Race Ball-Race Rollers for Mini 4WD (Ringless) - Precision Choice  [15437]

Intro to the Tamiya 13mm Aluminium Ball-Race Rollers

The Tamiya 15437 13mm Aluminium Ball-Race Rollers are made to improve handling on your Mini 4WD. Constructed from light aluminium, they offer strength without excess weight. Each roller contains 520 ball bearings to ensure consistent, low-friction rotation against guide rails.

Compatibility and where to fit them

These ringless rollers suit a range of Mini 4WD chassis and can be used at the front or rear depending on your setup. Their profile helps preserve momentum and provides added stability for precise cornering lines.

What they change on track

By lowering friction, the ball-race rollers produce smoother transitions through bends and can help you post better lap times on fiddly circuits. Durable bearings mean steady performance across multiple races and practice runs.