These Tamiya 15461 JR 19mm Aluminum Rollers deliver a durable, low-mass option to improve your Mini 4WD's cornering and straight-line stability. Machined aluminium bodies coupled with plastic ring contact surfaces help cut friction while the 5-spoke layout works with the built-in ball bearings to keep rotation smooth under race conditions.
The kit includes the mounting screws and spacers needed for a straightforward swap on most Mini 4WD chassis. Whether you are trimming lap times or refining your setup, these rollers balance strength and responsiveness for consistent track performance.
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