Yeeeaaahhhh,,,, no tube pressing the bead against the rim,,Seems like a hard slide would rip the tire off,,
Maybe it works great,, I dunno,, but I wouldnt be th trailblazer,, Id hafta see it work in all kindsa environments,,
However,, On the road and got a flat,, Buy out the sporting goods store and limp it home,,

I wonder if you need a hooka and a straw to get them in there.  

Mousse Inserts