KickAss Tyre Deflator Set Review

Four black KickAss tyre deflators with brass adjusters and four spare valve caps laid out on a log, the pouch behind
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The KickAss Tyre Deflator Set is four automatic deflators that let air out of your tyres and stop at the pressure you set. It’s a great set: they work fantastically, they’re a bit easier to set than our Staun deflators, and they live in our glovebox, set at 20 PSI for when we go on sand. I paid $50 for them.

What’s in the box

Four black deflators with a brass adjuster and a knurled lock ring, adjustable from 10 to 30 PSI, four spare brass valve caps and a black neoprene KickAss zip pouch with a clip to hang it up. Each deflator has a PSI scale on one side and a BAR scale on the other.

What we like

  • Easy to set with a PSI scale
  • Deflates all four tyres at once
  • Stops at the set pressure
  • Lives in the glovebox
  • Four spare valve caps

What we don’t

  • Pouch zipper came loose
  • No gauge in the set
  • 10 PSI minimum
Four KickAss tyre deflators in an open black zip pouch, held in a hand
The set in its pouch

Quick Specs

Spec Details
BrandKickAss
MaterialBrass
ColourBlack
Weight133 gwith the pouch
TypeAutomatic
Pressure range10–30 PSI
Included4 deflators4 spare brass valve capsPouch

Setting them

This is where they beat our Staun deflators. Screw the lock ring up, then twist the adjuster until the pressure you want lines up with the top of the deflator body (in our case 20 PSI), and screw the lock ring back down to hold it there. The scale gets you close, and checking the first tyre with a pressure gauge gets it spot on. The scale is in PSI on one side and in BAR on the other, so it works whichever unit your gauge uses. Once they’re set, you leave them: ours stay at 20 PSI for the sand, so they’re ready to go.

A KickAss deflator in a hand with the lock ring screwed up, showing the PSI scale above the deflator body
Lock ring up, then twist to your pressure
A KickAss deflator in a hand with the lock ring screwed back down against the body at 20 PSI
Lock ring back down at 20 PSI
The other side of a KickAss deflator, showing the BAR scale above the lock ring
PSI on one side, BAR on the other

On the tyres

Take off the valve caps, screw a deflator onto each valve, and all four tyres go down at the same time. Inside each one a spring-loaded valve lets air out until the tyre reaches the set pressure, then snaps shut, so you can stand back instead of crouching at each wheel with a gauge. They work fantastically: they stop right where we set them. They’re not the fastest, though: a deflator that takes the valve core out lets air out much quicker. Unscrew them, put the valve caps back on, and you’re ready for the sand. The set comes with four spare heavy-duty brass valve caps, handy when a plastic one disappears into the sand.

A KickAss deflator screwed onto the tyre valve of a Prado
Screwed onto the valve
A KickAss brass valve cap screwed onto the tyre valve of a 4WD
One of the four spare brass valve caps

Carry and durability

The set weighs 133 g in its pouch, small enough that it lives in our glovebox, so it’s always in the car. The pouch has a little clip, so you can hang the set up somewhere, and it feels fine, in a nice soft material. The one problem we’ve had is the zipper: it has come loose at the end and isn’t the best quality, so keep an eye on it before a deflator goes missing. Keep the deflators in the pouch between uses, too: sand or grit inside the spring can stop the valve sealing.

The KickAss deflator set in its pouch on a digital scale showing 133 grams
133 g with the pouch
The end of the KickAss pouch zipper, where it has come loose from the pouch
The zipper has come loose at the end

Deflators compared

Exactly the same deflators are also sold by Anaconda under the Dune brand, as the Dune 4WD Tyre Deflators (4 pack), so if you’re near an Anaconda store, that’s the same set. We also use the CampBoss 4x4 Boss Air Tyre Deflators and the Staun Tyre Deflators. The CampBoss set is our top-rated: also easy to set, lighter, and it goes down to 5 PSI, but it cost $90. The Staun set goes down to 6 PSI and comes in a leather pouch, but setting it is more fiddly. The KickAss set is the cheapest of the three and easy to set. Our tyre deflators guide compares all the deflators and gauges we’ve tested.

This reviewKickAss Tyre Deflator SetCampBoss 4x4 Boss Air Tyre DeflatorsStaun Tyre Deflators
Easy to setYesYesNo
TypeAutomatic × 4Automatic × 4Automatic × 4
Range10–30 PSI5–30 PSI6–30 PSI
Weight133 g114 g147 g
Price paid$50$90$80
Our score9.49.59.3

Conclusion: KickAss Tyre Deflator Set

The KickAss Tyre Deflator Set is a great set of four automatic deflators: easy to set with the PSI scale and lock ring, they deflate all four tyres at once and stop right at the pressure you set. They live in our glovebox at 20 PSI for the sand. The pouch zipper has come loose and the range stops at 10 PSI. I paid $50, and they’re a set we’d recommend.

9.4/10
The verdictField-tested rating

Four automatic deflators, 10 to 30 PSI, that are a bit easier to set than the Staun set and live in the glovebox in a 133 g pouch.

The pouch zipper isn't the best quality.

Best for
  • 4WD tourers
  • Beach & picnics
  • Weekend trips
Worth the money?Value 9.2

Yes. I paid $50, they work fantastically and they live in our glovebox, set at 20 PSI for the sand.

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Also consider

FAQ: KickAss tyre deflator set

How do you set the KickAss tyre deflators?
Screw the lock ring up, twist the adjuster until your pressure lines up with the top of the deflator body, and screw the lock ring back down. Check the first tyre with a gauge like the AstroAI digital gauge and fine-tune the setting.
What PSI do you run on sand?
We keep ours set at 20 PSI for the sand. The right pressure depends on your tyres, load and the sand itself: our 4WD tyre pressure guide explains how to choose.
KickAss or Staun tyre deflators?
Both are automatic brass deflators that work well. The KickAss set is a bit easier to set, with a PSI scale and a lock ring, and cost us $50. The Staun set goes lower, down to 6 PSI, but setting it is more fiddly.

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9.4/10Check price at BCF