ok i had 5 people in the back as we made our way across some rough water. crusin along i guess every ine in the back seat was leaning back like they were in a fat joe video cause the seat slid forward off the rear support and bent to the floor. The rear seat on these things are kinda a joke. the have support on three sides when they are in the down position this works ok , till it slides forward. Also you can put the seat up on the arm rests so it has a sun deck like a v-drive. kinda cool but the seat was like a wet noodle...now we got a solid dance floor!!! i made the frame from 1 1/4 alum.