Devices like the Air Dragon might be good for my Bicycle, but if I tried to use one on the RV I would have two problems
ONE: Come back tomorrow itius and the battery won't last that long (22.5" XRV's take a lot of air) even my 150 PSI 6 Gallon can't do it in one gulp.
Two: Won't fit the duals without extenders
Might be useful in the car but I have a small portable for that already. So does my "Girlfriend" for her car (Well she's as close as I'm getting here, we are breaking up at the end of the month, which was our aggreement on day one, When the new motor goes in,, By By Honey).