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Staun Air Down Review

Leather carry pouch

Solid brass construction

Hold here

NOT here

Screw on and walk away

I met up with the Staun folks at the Off Road Expo in Pomona last Oct and after talking with them I agreed to give a set of these a good look.

Four come in a small leather pouch that you can carry in your pocket or glove compartment.  The advantage of carrying them in your pocket is that it gives you that manlier look, besides it better than stuffing a sock down your BVD’s.  

The function of the Staun is to air down your tires to a pre-set level without having to hover constantly check tire pressure.  

The following is my impression of their performance:

Five of us arrived at the trailhead about 9:45am ambient temperature was 75 degrees.  Three of the Jeeps were wearing MTR 35’s for shoes and my ole Jeep, ‘Cowboy’ was shod with a brand new set of 37 MTRs.  We all aired down at about the same time.  The Staun’s had been pre-set to 7 lbs.  I finished a bit after the others but only by 1 minute.  They had aired down to 12 and 15 lbs respectively.  Given that I had the larger tires and aired down to a lower pressure the Stauns are fast.  Of note here is that you can air down will driving, but I would refrain from hauling down the highway, as they are quite heavy.  

After a few minutes, they automatically stopped and I removed them.  Then I checked the static air pressure and found it to be 7.5 lbs psi for two and 7.0 lbs psi for the other two.  The air gauge is digital and it only accurate to the nearest .5 lbs psi.  At the conclusion of the run, which was about 6 hours in length, I checked the air pressure again and they were now all at 7.5 lbs psi well within the range of expectation and acceptable performance.

There are some areas of caution.  The adjusting knobs [two] for setting the let off pressure are quite handy for installing or removing the deflator.  This of course will change you setting.  The install/remove is the body of the deflator itself and care taken to insure one uses that to install/remove.  Therefore, you ham-handed off roaders need to exercise some caution and while the rest of you are at, be sure to remove your gloves.

How to maintain and clean:

1) From time to time they need to be cleaned. For an easy clean WD-40 works as good as anything. Be sure to wipe well to keep it from getting sticky. Take apart, clean with a 'rough' clean rag, inspect the o rings for possible replacement. Good soak with WD-40 and a good dry, assemble and take to 4 wheelers supply to have them adjusted.

2) The Staun's and Smittybuilts are made of brass, brass corrodes and the surface gets rough. You can clean this up easy. Brasso, rough rag, good soak and a good rubbing. Finish off with a WD-40 clean and lube and they look and perform like new. 

Performance:  They work as intended.

Construction:  Solid brass, rugged, but do need to be kept reasonably clean.

Cost:  About $60 bucks.

Value for money:  Depends on how much of a hassle one view’s the process of airing down.  I feel its good value since they are adjustable and should last longer than the piece of junk you drag out to the trails and most likely the only thing you might own that works.

Some websites with good info on airing down:

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