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If you have ever wondered what kingpins are, then this article is for you. Kingpins are a key component of a skateboard truck, holding together the different parts of the board. A kingpin is also known as a master bolt, and it is connected to the baseplate and hanger via holes. Listed below are the …

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How wide is a concrete truck? It depends on the type of truck you have. There are several types of concrete trucks. Each has different size requirements. A full-size concrete truck will typically hold between 8 and 10 yards. Smaller versions are only four or five yards. Larger ones can hold up to 14 yards. …

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Retarders are mechanical or electrical devices used to slow the vehicle’s speed when it is approaching a speed limit. These devices are used as supplemental brakes to the mechanical ones. They are meant to reduce the amount of energy a truck can generate while traveling at highway speeds. Unlike the mechanical brakes, retarders do not …

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