air
...i have found so far is that i had a valve stick ONE TIME the other day when it was real cold. But i run water traps and drain my tanks so i dont have those problems yet i laugh when my friend calls me and tells me his ride is tuck on the ground cause he never emptied his shit. And of course when you bag, DO IT RIGHT THE FIRST TIME. And you should have nay problems. And dont skimp on the little shit like grommets around wires and lines. Its a few dollars and bags tend to nickle and dime your ass when you start off, but spend the money in the first place. Or else it will come back to bite you in the ass.85mph the whole way. Rode like a dream. Think about it, many vehicles come with airride from the factory. For ex: Linolns & Range Rovers. You think they would put airride on them if it rode like ass ? Nope. Only disadvantage of airride is the POSSIBILITY of problems. Ex: blown bags, blown lines, sticking vavles. BUT you wont have any bags or lines blow unless somethign is rubbing them or has a manufacturer defect. Only disadvantage i have found so far is that i had a valve stick ONE TIME ...