Originally Posted by 2004pred
In all seriousness though, I would be very concerned about the ***** squeezing out of the chains. That is a 700+ pound machine plus you, that is a lot of force. Then I am sure you would have to give it some pretty good gas to get it moving in the water, that spinning force might make it very unstable.
Yes I'm concerned about them slipping out too. I'll either add more chain, or better yet put some kind of material on there that would keep them from slipping out and also protect them.
As for being unstable, when going about 20mph on the snow they started to bounce around a lot. I imagine in the water, the exercize ball would be deformed, with the bottom side flattening out due to pressure, and as the wheel turned, it would have to reshape itself. I hope this effect helps push it through the water. I'll test it in shallow water first, of course!