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Bones Hardcore Bushings Soft x2 set White Blue
When you turn a normal truck, the hanger web puts pressure on one side of each bushing (top and bottom). This squeezes that side and pushes the other side of each bushing away from the kingpin. Bones call this a single action bushing because only one side of the bushing works for you at a time.
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Bones Hardcore Bushings Soft x2 set White Blue