I wonder how light someone has to be before this becomes a problem.
On my beater 40 lbs mountain bike, I have no problem making ridiculously sharp turns where I nearly graze the ground. On my CAAD 10, however, I become slightly hesitant about leaning so far as I get the sensation that the bike is going to slip (it may not -- I just kind of wonder about it). I weigh 135 lbs. Do I need to worry, provided the ground is clean asphalt? (I'm looking for answers from experience, not conjecture).