If you want to add both visual flair and race-ready handling to a Mini 4WD, the Tamiya 95048 - JR 13mm Aluminum Ball-Race Rollers (Ringless/Pink) are a practical choice. Machined from light aluminum, these rollers keep added mass to a minimum while giving the rigidity needed for competitive runs. The 13mm size is chosen to improve cornering stability and lower rolling resistance, making setup tuning easier for tighter tracks.
Each roller uses precise 520 ball bearings for smooth spin and consistent response during laps. The pink finish lets you personalise your car while keeping weight low at about 1.7 grams per roller, which helps maintain a low center of gravity and steadier speed through bends.
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