Monster Valve Tire Deflator from Power Tank. Monster Valves are over sized, light-weight, yet strong valve stems that you install as a second stem to your wheel. Made from 7018 aluminum, they are the fastest tire deflation and inflation product on the market.
Imagine airing down a 40x13.50 tire from 35 psi down to 10 psi in under 30 seconds. This kit also includes a Monster Chuck which, when used with a Power Tank, will inflate that same tire in 50-60 seconds.
They are easy to install into steel or aluminum wheels. Just drill a 7/16 Inch hole, tap 1/4 Inch NPT threads, and screw them in. Done. You don't even have to remove your tire from the rim.
With an aluminum body and collar and brass cap the total weight of each valve is a mere 1.1 oz and does not require a tire rebalancing. Due to its construction it is 5 times stiffer than a standard metal valve.
7018 Aluminum body
Brass Dust Cap
Not recommended for tires smaller than 35 inches