If you want to be able to air down FAST, the Apex RPVs can drop your tire pressure in just seconds!
Apex RPV (Rapid Precision Valves)
https://www.apexdesignsusa.com/products/rapid-precision-valve
Follow our build at https://revkit.com/trail-traveler
Check out our Amazon store at:
http://www.amazon.com/shop/trailtraveler
Kerry is the creator and host of the TrailTraveler YouTube Channel. He and his wife, Kateryna, create all of the content and do all of the videos on the channel.