The Tamiya 94932 JR 17mm Aluminium Rollers with plastic rings are made to improve the contact point between roller and track. They offer a low-drag surface to help maintain momentum through corners while the 3-spoke rollers include ball bearings for reliable rotation.
These rollers suit both Mini 4WD and Mini 4WD PRO series models, making them a flexible upgrade. The aluminium body provides strength and the plastic rings cut friction, which helps keep cornering stable under load.
Racers and hobbyists will find these rollers useful for tightening corner exits and smoothing lap times on technical circuits. Their ease of fit means you can test different setups quickly during practice sessions.
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