Nah....just kiddin' man!!!
Seriously. At the risk of sounding like some abstract Jedi Master. Only you know the answer to your question.
Yes there are physical limits of adhesion.
Yes there are forces of physics at work.
Yes things could go wrong.
The biggest problem you have though is worring about that peg mount catching the ground and levering the front tire off the ground.
If your slinging a cruiser around corners that fast, try moving your weight to the inside of the seat in the corner.