Each of them makes a tire inflator which you can use to keep your machines rolling smoothly. Not only that, but each brand also offers cordless versions that are powered by their respective 18V ...
Both Ryobi and DeWalt have reliable tire inflators that go head-to-head with each other in terms of capabilities. Ryobi's 18V ONE+ High Pressure Inflator retails at $40 for the tool-only option.