The air roll button is likewise on the X button for an Xbox controller from dakunlee's blog

In a similar vein as strength slide, the air roll button is likewise on the X button for an Xbox controller. So players will in the Rocket League Items end run into the identical problem as the default electricity slide binding, but inside the air. 

If you want to enhance within the air and air roll at the equal time, it’s very hard while the usage of the default setup. You can restoration this by using changing your air roll enter to considered one of your bumpers, it may even be the identical bumper as strength slide if you would really like.

As an alternative, you could leave your powerslide and airroll certain to X, and exchange your increase activation to lolga.com a bumper. There are some expert players who choose this installation. It just comes right down to what feels right for you.