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The bearings are usually silver looking discs that are in the wheels. They can be any color, but since they are usually metal, the most common color is silver. When you assemble a skateboard, you have to press the bearings into the wheels before you put the wheels onto the trucks. This is what gives you speed, not the wheels. Bearins are rated usually ABEC 1 - 7 (except for bones). Basically, the higher the number the faster they will be, but also the price.

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16y ago

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