Motogp bikes are achieving lean angles of 60 degrees these days due to tyre, chassis and suspension technology. And theres no tread on a slick tyre Noz however they do have very sharp profiles so theres more rubber on the deck at high lean angles, especially the front
the biggest problem with leaning so far over (apart from there being no room for the riders body) is telescopic forks and rear shocks, which usually cantilever on the vertical plane, don't work so well at almost horizontal, which is another reason lean angles like that wont be seen on your local roads, international MotoGp spec racetracks are glass smooth in comparison.
If I was an American or a teenager I'd say that was awesome ............but as I'm neither I need another adjective but there is'nt one that fits so ...........thats AWESOME !! How the hell can they get down there without losing it . ?