Tamiya 15398 JR Double Aluminum Rollers 13-12mm - Race Cornering Upgrade  [15398]

Quick Look at Tamiya 15398 Double Aluminum Rollers

The Tamiya 15398 Double Aluminum Rollers (13-12mm) are made to boost handling and stability for Mini 4WD cars. These rollers are a straightforward tuning part for racers who want crisper cornering and steadier laps.

Dual Roller Layout and Build

This item uses a stacked roller arrangement with a 12mm roller on top and a 13mm roller beneath. That pairing helps keep the body stable during faster sections and smooths corner transitions by sharing load across two contact points. Aluminium construction keeps the parts tough while staying light for competitive setups.

Fitment and On-Track Use

• Works with Mini 4WD and Mini 4WD PRO chassis types.
• Improves stability and corner control on standard Tamiya race layouts.
• Simple to fit to common chassis mounts, useful for quick race-day tuning.