The Tamiya 94617 10mm Diameter Guide Roller Ball Bearing Set is a practical upgrade for Mini 4WD fans who want crisper rolling performance. This limited edition set helps cut rotational friction so rollers spin more freely and deliver steadier lap times on the track. With a slightly smaller diameter than the common 11mm bearings, these 10mm rollers fit across all Mini 4WD chassis for flexible use.
Ideal for both casual tuners and competitive racers, this Grade-Up part adds precision to your setup without complex modifications. The bearings support improved handling and can help you squeeze out extra speed during corner exit and sustained runs, making them a solid pick for tuning and maintenance sessions.
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