Pressure Relief - Airing Down Large Off Road Tires
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The Rapid Air Down valve stem must be installed on the wheel prior to mounting the tires. They can be aired up conventionally, but then to air down simply unscrew the big grooved nut and let the air escape through the holes in the body of the valve. Though previously made by Klune-V, these are currently available through Trail Ready and Quadratec. View Related Article
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