How To Inflate The Dually Tires And More…

“Dually tires are a pain in the ass!” Not my words but the words of a friend who recently visited me wanting to know how to inflate dually tires. To be fair to him, inflating dually tires is virtually impossible and requires you to twist, turn, crawl, and even pray just to achieve the right position. Unlike the single tires, most dually tires stem comes facing backward which leaves you with limited options while inflating them. And when they happen to be facing forward, they come with a seriously awkward angle.

How to inflate dually tires

How to inflate dually tires

So, what exactly are dually tires?

Dually tires are what we normally see on hauling and towing trucks. Initially, they were thought to increase the capacity of the vehicle but recent tests indicate that they offer greater the benefit mainly lie in providing stability and safety.


  • They give your car masculinity and macho look We all love to feel and look powerful, while on the move. And since they say your character is reflected in your car, dually tires evoke a powerful dominating character.
  • We are all alive to the saying “two is better than one”. Dually tires increase traction in hard to navigate terrains plus improve on the braking.
  • They also come in handy in the event one of the tires is damaged. The additional tire can support the truck until you can safely reach a repair shop.
  • They also play a big role in extending the tire life as they allow for even weight distribution over the six tires.  


  • They aren’t the easiest to inflate.
  • They cant be sized up.
  • Hard to install snow chains
  • Make the vehicle appear large which may be problematic in fitting in small parking slots. 

How to Put Air in Dually Tires

First, I need to say there are very many ways to inflate your dually tires. Some may work for you and some may not work for you. For this reason, I am not insinuating that this is the best method but it has worked for me on my dually recreational RV.

Now, if your vehicle is fitted with dually tires, you may be lucky enough to find that the rims are correctly aligned for easy access the inflating valve. Unfortunately, many dually vehicles will agree this is not normally the case.

One of the most widely used methods which I personally use is using an inflator with extended metal valve stems. On top of inflating, they are great for deflating and checking tire balance issues. I would personally vouch for the ones with a 45 degrees chuck and 90 degrees twisting chuck which allows you to easily access the hard to reach inner stem.

Tools for checking pressure on dual tires

Tools for checking pressure on dual tires

To avoid backlash from rubber valve extension owners, we must say they aren’t bad. However, most users have complained that they tend to come loose due to the vibration and the centrifugal force.

If you don’t feel comfortable using the above-stated formula, you can also install the valve extension. They will certainly reduce the TAT for inflating and deflating your tires. However, I always advise people to consult their service provider before trying out something new. This is because valve extensions may certainly provide convenience in terms of monitoring and maintaining the tire pressure but special attention need to be taken when installing them to ensure they are safely done and displays accurate information.

As a footnote, you also need to carefully mount your dually tires. The outer wheel valve should never be lined up with that of the inner tire. Instead, they should be opposite to each other to avoid running into each other way. After all, prevention is better than cure.

Recommended Pressure for Dually Tires

How proper you maintain your tires generally dictate how safe your vehicle is. One of the cardinal aspects of dually tire maintenance is proper spacing between the rear tires and the sidewalls. It’s important to note that dual tires tend to deflect outwards when under load. If they happen to excessively deflect, they may come into contact with the sidewalls which may lead to serious damage.

Ensure that your tire pressure is properly maintained to prevent them from getting damaged. Ideally, it should be 60psi for the front tires and 55psi for the rear. 

The best tire gauges for dual tires are reviewed here.

Dual Wheel Tire Sizing and Tread Depth 

Another important factor to consider is the size and the tread depth. These two factors affect how evenly weight is distributed on all the four tires. The difference in tire height leaves one tire shouldering majority of the load leading to uneven wear and tear.

Truck Dual Tires

Truck Dual Tires

Final Take 

Dually tires can be frustrating to inflate. They may see you spend a night in the bust trying to figure out how to inflate them. However, this shouldn’t be the case. If you have been wondering on how to put air in dual tires, this article will come in handy. However, this is just one of the many ways to do it and it can be modified to make it even better.

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