We had two Big Tex trailers - ive sold one. This is the nicer one. We added air ride after purchasing them. This does not affect the capacity you can haul. All this does is make it ride better & if by chance you load the trailer wrong it helps smooth out the ride. You dont have to use it. We used these for hauling extremely light dock sections. We are no longer hauling due to DOT regulation changes. We have hired a local hauling company & no longer have use for the trailers. The trailers are almost identical, except one has air ride/air bags. That is the trailer that is loaded in the photos. The trailer that has no load on it is the trailer with no air ride. We kept these very well maintained. We are willing to trade for cars or trucks also! If you are interested in doing any type of trading we will need complete photos, specs, etc. Make sure photos show inside & outside, under carriage, suspension, etc.