Yes, you just fill them with air up to 60 pounds but fill them slowly they can blow up if over-inflated and the noise will sound like your coach exploded. I use a 12V
compressor which puffs along to get the bags up to the correct pressure. The advantage to this compressor is that I can check the bags pressure st a campground and fill them before we leave in the AM. I will keep the pressure at 55 to 60 for interstate driving and drop it down to 50-55 for secondary roads. This gives us the best ride and best control.