The Tamiya 15291 JR RC Guide Roller Ball Bearing is engineered to give Mini 4WD cars cleaner handling in bends. These 9mm rollers use ball bearings to lower internal resistance and reduce wear on contact points, resulting in a steadier ride and improved line holding at speed.
Compatible with many Tamiya Mini 4WD platforms, these rollers suit tuners who want reliable, repeatable performance. Installing them is a straightforward way to tighten handling and help keep lap times consistent over multiple runs.
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