Tamiya 15437 - 13mm Aluminum Ball-Race Rollers for Mini 4WD (Ringless) - Lightweight Upgrade  [15437]

Product summary for Tamiya 13mm Aluminum Ball-Race Rollers

The Tamiya 15437 13mm Aluminum Ball-Race Rollers are built to boost Mini 4WD performance. Manufactured from light aluminum, these rollers balance durability with low mass. Each roller uses 520 ball bearings to promote smooth spin and cut down on contact friction against track guides.

Fitment and setup notes

These ringless rollers work well in front or rear positions across common Mini 4WD chassis. Their compact design helps keep speed consistent and improves vehicle stability, making them a practical choice for racers refining handling and setup.

On-track benefits

Lower friction from the ball-race construction yields cleaner cornering and can help reduce lap times on technical layouts. High-quality bearings support reliable rotation so the Mini 4WD keeps performing through multiple heats and practice sessions.