Buying guide
How to choose a compressor and tyre gear
Letting tyres down for sand, gravel or rough tracks gives them a bigger footprint and a softer ride. A good compressor and gauge let you put the air back before you're back on the bitumen.
- Duty cycle
The duty cycle is how long a compressor can run before it needs to rest. Across ARB's range it runs from 33% to 100%: higher suits bigger tyres and more than one vehicle.
- Portable or fitted
A portable unit moves between vehicles. A fitted one is wired in and mounted, ready to use, and can also run air tools or lockers where it's built for it.
- A gauge you trust
Set pressures with a good gauge, and check them cold. Adjust for how loaded the vehicle is.
- Air back up
Reinflate to road pressures before you're back on sealed roads. Low pressures on bitumen wear and heat tyres.
Choosing an air compressor
Think about how you will use it. Airing down for sand, mud and corrugations is standard practice, and the compressor is what gets you back to road pressure afterwards. A portable kit that lives in a bag suits occasional trips and swapping between vehicles, while a hard mounted unit suits tourers who air up and down constantly and want it plumbed in and ready.
Flow rate and accessories separate the options. Bigger tyres and four corners to fill reward more flow, which is why twin designs exist, and it is worth checking what each kit includes, from hoses to inflation fittings and carry bags. The TJM Pro Series covers single and twin options, while the Mean Mother Adventure 4 includes a wireless remote.
Related categories
Common questions
Why let tyres down off-road?
Lower pressure lengthens the tyre's footprint, giving more grip and a smoother ride on soft or rough ground (BFGoodrich).
What pressure should I run?
It depends on your tyres, load and the surface. Start from your tyre and vehicle makers' guidance, set pressures cold, and adjust for load.
What is a compressor's duty cycle?
The share of time it can run before it needs to cool. A 100% duty cycle compressor can run continuously.
Can I drive on Victorian beaches?
Private vehicles are banned from Victorian beaches except under specific exemptions (Parks Victoria).
