The Tamiya 15181 9mm Diameter Guide Roller Ball Bearings are a compact upgrade for racers chasing steadier handling and snappier response. Being the smallest roller size Tamiya offers, they are great for drivers who want to fine tune roll height and couple them with 13mm bearings for a wider setup range.
Manufactured to reduce friction and boost stability, these bearings help keep your Mini 4WD composed through tight corners and complex sections. Their small form factor contributes to a lower centre of gravity and helps maintain reliable performance without excessive weight or bulk.
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