The Tamiya 94769 11mm Aluminum Ball-Race Rollers offer a compact upgrade for Mini 4WD cars that need cleaner wall interaction and steadier handling. Built from aluminium for a balance of strength and low mass, these bowl-type rollers roll smoothly against course walls and stand up to repeated use. The 11mm size keeps the setup nimble while improving turn stability.
Install them under the bumper to reduce side friction and help preserve speed through corners. They integrate with common Tamiya parts, including Item 15412 and 94745, letting you fine-tune mounting positions and roller combos.
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