Related best tandem kayak
The maximum recommended weight is 450lbs.
I believe they are. I’ve replaced the bottom base once. I’m very happy with this kayak. I’ve only use it on calm water and for 2-3 seasons so far. I do recommend getting a “real” backpack bag for it. The one that comes with it is very uncomfortable for carrying.
I would say its ok for just a 6 4 person. Would have to move the seat in the middle. I’m 5 9 and daughter is 5 8 and we both fit great.
Three air chambers total, two side chambers plus the bottom.