Which Tamiya Mini 4WD roller is the best? We scientifically tested and compared 15 roller sets
![8 different Tamiya Mini 4WD metal rollers [Item no: 95612, 15522, 95643, 95497, 15426, 95160, 15345, 15475]](https://www.mini4science.com/wp-content/uploads/2024/07/IMG_0296-1024x863.jpg)
Which is the best Tamiya Mini 4WD roller? We conducted a scientific experiment to measure friction and other properties of 15 sets of rollers.
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