BILLET4X4 Trailhead Tire Deflators - Set of 4 (Red) - from (4X4 Off-Road Vehicles)

Trailhead Automatic Tire Deflators are for off-roaders who want to air down quickly and conveniently. These tire deflators, deflate accurately and evenly in all four tires, to a user pre-set pressure (5 PSI to 20 PSI) in seconds - even while you're driving. All the adjustment points are inside the body thus making the deflator suited to airing down while you drive, and with no adjustment upset when installing. To use, simply screw on to valve stems and drive off. ABSOLUTELY THE FASTEST WAY TO AIR DOWN!